Sara is investing $1,000 today. which one of the following will increase the future value of that amount? a. shortening the investment time period b. paying interest only on the principal amount c. paying simple interest rather than compound interest d. paying interest only at the end of the investment period rather than throughout the investment period e. increasing the interest rate

8. problems and applications q8there are four consumers willing to pay the following amounts for haircuts, and there are four haircutting businesses with the following costs: consumers' willingness to payyvette: $35cho: $15sean: $45bob: $25firms' costsfirm a: $40firm b: $20firm c: $10firm d: $30each firm has the capacity to produce only one haircut.for should be given.which businesses should cut hair? check all that apply.firm afirm bfirm cfirm dwhich consumers should have their hair cut? check all that apply.bobchoseanyvettethe maximum possible total surplus is