Select all the expressions that are equivalent to 4− 4 − x . −4 x − 4 4+- 4 + - x -+4 - x + 4 -4+ - 4 + x 4+ 4 + x Use the distributive property to write an expression that is equivalent to 5(-2−3) 5 ( - 2 x − 3 ) .

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:

(a) the volume of the cone is 20/3 in3

hence, option a is correct.