At a recent party, it cost $9.50 for refreshments for 10 guests. at this rate, how much would it cost to have refreshments for 80 guests?

15. jiovanni is looking in to two different companies that offer study guides for math exams.test prep 101 charges a $5 flat fee and an additional $0.25 per problem.math charges a $2 flat fee and an additional $0.50 per problem.how many prablems would make the costs of the two companies be equal? varibles: equations/eniqualities{ {

The number of students who ride a school bus is 110% of the number of students who walk. how many students ride the school bus?

Thomas buys a cardboard sheet that is 8 by 12 inches. let x be the side length of each cutout. what is the size of the cutout he needs to make so that he can fit the most marbles in the box?