What is the mathematical expression for “the $100 earned was split between all the people and each got $12.50”?

Jose bought 20 shares of netflix at the close price of $117.98. in a few years, jose sells all of his shares at $128.34. how much money did jose make? a.) $192.50 b.) $207.20 c.) $212.50 d.) $224.60

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?