When calculating simple interest, what must you do if you want to invest for months or weeks instead of years? a. simple interest only pays yearly, so you should find another investment. b. the simple interest calculation does not use those units, so you should just calculate as normal. c. the units have changed, so the interest formula switches to i·t=p·r. d. interest rates are annual, so you must convert the units into years

Which of the following best describes the delian problem?

Barbara has a good credit history and is able to purchase a car with a low-interest car loan. she co-signs a car loan for her friend jen, who has poor credit history. then, jen defaults on the loan. who will be held legally responsible by the finance company and why? select the best answer from the choices provided. a. barbara will be held legally responsible because she has a good credit history. b. jen will be held legally responsible because she drives the car. c. barbara will be held legally responsible because she is the co-signer. d. jen will be held legally responsible because she has a poor credit history. the answer is a

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.