A classroom will seat 80 people. If 56 seats are filled, what percentage of the seats are filled?

To find the percentage of seats filled, we divide the number of filled seats by the total number of seats and multiply by 100.

Percentage of seats filled = (56/80) * 100 = 70%

Therefore, 70% of the seats are filled.

Michi put $7.50 worth of gas in her car. Two co-workers who were riding to work with her offered to share the cost of the gas. One paid 1/2 of the total amount and the other paid 1/3 of the total amount. How much of the total amount was left for Michi to pay?