Suppose that our banking system requires the ability to make joint accounts. define a function make_joint that takes three arguments. a password-protected withdraw function, the password with which that withdraw function was defined, and a new password that can also access the original account. the make_joint function returns a withdraw function that provides additional access to the original account using either the new or old password. both functions draw from the same balance. incorrect passwords provided to either function will be stored and cause the functions to be locked after three wrong attempts. hint: the solution is short (less than 10 lines) and contains no string literals! the key is to call withdraw with the right password and amount, then interpret the result. you may assume that all failed attempts to withdraw will return some string (for incorrect passwords, locked accounts, or insufficient funds), while successful withdrawals will return a number. use type(value) == str to test if some value is a string:

You are opening a new store and must project in your business plan the amount of inventory shrinkage. you have forecasted $1,200,000 in sales for the first year. assuming your shrinkage will be 5%, the high end of the national average, calculate the projected annual shrinkage for your business plan. you are opening a new store and must project in your business plan the amount of inventory shrinkage. you have forecasted $1,200,000 in sales for the first year. assuming your shrinkage will be 5%, the high end of the national average, calculate the projected annual shrinkage for your business plan.

Afirm's before-tax cost of debt, rd, is the interest rate that the firm must pay on debt. because interest is tax deductible, the relevant cost of debt used to calculate a firm's wacc is the cost of debt, rd (1 – t). the cost of debt is used in calculating the wacc because we are interested in maximizing the value of the firm's stock, and the stock price depends on cash flows. it is important to emphasize that the cost of debt is the interest rate on debt, not debt because our primary concern with the cost of capital is its use in capital budgeting decisions. the rate at which the firm has borrowed in the past is because we need to know the cost of capital. for these reasons, the on outstanding debt (which reflects current market conditions) is a better measure of the cost of debt than the . the on the company's -term debt is generally used to calculate the cost of debt because more often than not, the capital is being raised to fund -term projects. quantitative problem: 5 years ago, barton industries issued 25-year noncallable, semiannual bonds with a $1,600 face value and a 8% coupon, semiannual payment ($64 payment every 6 months). the bonds currently sell for $845.87. if the firm's marginal tax rate is 40%, what is the firm's after-tax cost of debt? round your answer to 2 decimal places. do not round intermediate calcu

Individual consumers belong to which step of choosing a target market? possible customers competition demographics communication