katie and margarita have $20.00 to spend student Choice bookstore, where all students receive a 20% discount. Katie wants to purchase a book which normally sells for 22.50 and margarita wants to purchase a book which normally sells for 22.75. With a sales tax of 10%, can Katie and Margarita buy their books

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

h/o/e/s mad

step-by-step explanation:

si si si