The steam requirements of a manufacturing facility are being met by a boiler whose rated heat input is 5.5 × 106 Btu/h. The combustion efficiency of the boiler is measured to be 0.7 by a hand-held flue gas analyzer. After tuning up the boiler, the combustion efficiency rises to 0.8. The boiler operates 5200 h a year intermittently. Taking the unit cost of energy to be $23/106 Btu, determine the annual energy and cost savings as a result of tuning up the boiler.

Barbara jones opened barb’s book business on february 1, 2010. the company specilizes in editing accounting textbooks. you have been hired as manager. your duties include maintaining the company’s financial records. the following transactions occurred in february , the first month of operations. a. received shareholders' cash contributions on february 1 totaling $16,000 to form the corporation; issued 1,000 shares of common stock. b. paid $2,400 cash on february 2 for three months' rent for office space. tip: for convenience, simply record the full amount of the payment as an asset (prepaid rent). at the end of the month, this account will be adjusted to its proper balance. c. purchased and received supplies on february 3 for $300 cash. d. signed a promissory note on february 4, payable in two years; deposited $10,000 in the company's bank account. e. on february 5, paid cash to buy equipment for $2,500 and land for $7,500. f. placed an advertisement in the local paper on february 6 for $425 cash. g. recorded sales on february 7 totaling $1,800; $1,525 was in cash and the rest on accounts receivable. h. collected accounts receivable of $50 from customers on february 8. i. on february 9, repaired one of the computers for $120 cash. tip: most repairs involve costs that do not provide additional future economic benefits. j. incurred and paid employee wages on february 28 of $420.required: set up appropriate t-accounts for cash, accounts receivable, supplies, prepaid rent, equipment, furniture and fixtures, notes payable, contributed capital, service revenue, advertising expense, wages expense, and repair expense. all accounts begin with zero balances.tip: when preparing the t-accounts, you might find it useful to group them by type: assets, liabilities, stockholders’ equity, revenues, and expenses.2. record in t-accounts the effects of each transaction in february, referencing each transaction in the accounts with the transaction letter. show the unadjusted ending balances in the t-accounts. 3. prepare an unadjusted trial balance at the end of february.4. refer to the revenues and expenses shown on the unadjusted trial balance. based on this information, write a short memo offering your opinion on the results of operations during the first month of business.

The total value of your portfolio is $10,000: $3,000 of it is invested in stock a and the remainder invested in stock b. stock a has a beta of 0.8; stock b has a beta of 1.2. the risk premium on the market portfolio is 8%; the risk-free rate is 2%. additional information on stocks a and b is provided below. return in each state state probability of state stock a stock b excellent 15% 15% 5% normal 50% 9% 7% poor 35% -15% 10% what are each stock’s expected return and the standard deviation? what are the expected return and the standard deviation of your portfolio? what is the beta of your portfolio? using capm, what is the expected return on the portfolio? given your answer above, would you buy, sell, or hold the portfolio?

The card shoppe needs to maintain 21 percent of its sales in net working capital. currently, the store is considering a four-year project that will increase sales from its current level of $349,000 to $408,000 the first year and to $414,000 a year for the following three years of the project. what amount should be included in the project analysis for net working capital in year 4 of the project?