Yolanda recieved a $90 gift for a coffee store. she used it in buying some coffee that cost $7.58 per pound. after buying the coffee, she had $59.68 left on her card. how many pounds of coffee did she buy?

$90.00 - $59.68 = 30.32

30.32 / 7.58 = 4

so the answer is 4

no, because the sides are not congruent

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: