Question 47658
b = price of ball
g = price of grapefruit
5.15 = .18 + b + g
.07b = .18
b = .18/.07
b = 2.57
5.15 = .18 + 2.57 + g
g = 2.40
check
.07 * 2.57 = .18
.18 = .18
OK
.18 + 2.57 + 2.40 = 5.15
5.15 = 5.15
OK