Betty gets paid 25 cents per paper to deliver newspapers in her neihborhood. when betty is sick, she pays her brother bob 10 cents per paper to deliver for her. if bobby makes $7.80 filling in for betty, how much money does betty get to keep for that day?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.