PART A
We were told that the price of a T-shirt is $50
T shirt and backpack is $100
T shirt, backpack and sportsball is $125
If If Brennan's parents give him a $ 75 donation, let x represent the amount of money that he would still need to win the prize of a T -shirt , backpack , and sports ball. It means that
t + 75 = 125
Thus, the equation ito