The basketball team is selling candy as a fundraiser. A regular candy bar cost 0.75 and a king sized

The basketball team is selling candy as a fundraiser. A regular candy bar cost 0.75 and a king sized candy bar costs 1.50. In the first week of the sales the team made 36.00. Exactly 12 regular sized bars were sold that week. How many king size are left?

Let r be the number of regular bars and k be the number of king size bars. Set up our equations:

1. 0.75r + 1.5k = 36
2. r = 12

Substitute (2) into (1)
0.75(12) + 1.5k = 36
9 + 1.5k = 36

Use our equation solver, we get:
k = 18