You want to put 8,000 in a simple interest account. it has a 2% annual interest rate. how long must you invest that money to earn 400 in interest

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?

Which will form a composite function?

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top