Tom decides to begin investing some portion of his annual bonus, beginning this year with $6,000. in the first year he earns a 8% return and adds $3,000 to his investment. in the second his portfolio loses 4% but, sticking to his plan, he adds $1,000 to his portfolio. in this year his portfolio returns 2%. what is tom's dollar-weighted average return on his investments?

Aceramics manufacturer sold cups last year for $7.50 each. variable costs of manufacturing were $2.25 per unit. the company needed to sell 20,000 cups to break even. net income was $5,040. this year, the company expects the price per cup to be $9.00; variable manufacturing costs to increase 33.3%; and fixed costs to increase 10%. how many cups (rounded) does the company need to sell this year to break even?

Which economic indicators are used to measure the global economy? check all that apply. a. purchasing power parity b. trade volumes c. spending power parity d. labor market data e. gross domestic product f. trade deficits and surpluses

Do you think it ethical and appropriate for marshall to have used himself as a test subject and swallowed a sample of helicobacter pylori? what precautions did he take? would you do it? why or why not?