Caden buys 3.9 pounds of grapes that cost $1.80 per pound. Which expression can be used to find the total cost of the grapes?
(3+0.9) 1+ (3 +0.9) x 8
(3 x 0.9) 1+(3 x 0.9) x 8
(3 x 0.9) 1+ (3 x 0.9) x0.80
(3 +0.9) 1 + (3+09)x 0.80

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:

answer: you need the equation in the question so i can answer it

step-by-step explanation:

14

step-by-step explanation: