(4x - 8) = 80/2
4x - 8 = 40
4x = 48
x = 12
answer
x = 12
All you have to do is divide 3 by 2 which is 1.5 so each friend will receive 1 and a half apples
$15,000 * 0.8 = $12,000
$12,000 * 0.8 = $9,600
$9,600 * .08 = $7,680
C=11. 11 -12 = -1. You can't subtract a integer so you have.to add it's opposite so 11 + (-12) = -1.
Hope it helps.
