Kevin's company makes solid balls out of scrap metal for various industrial uses. His current task is to make a batch of aluminum balls with radius 4.5 in. If he has a total of 76,302 in^3 of aluminum, how many balls can he make?

f

step-by-step explanation:

f

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:

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1