Michael has to pay $300 rent. He gets paid $18 per hour. Write an equation that represents his profit, y, after working x hours. Chakan worked at the warehouse after school. He earned $9.25 per hour stacking boxes. Which equation correctly relates Chakan's total earnings, $277.50, to the number of hours he worked, hh?

The formula, I=prt, is the interest earned, I, when given the principal, rate, and time. If the interest earned was $90, the principal, p, was $250, and the rate, r, was 0.10, find the time, t.

Shelby uses the equation y=11.5xy=11.5x to calculate her pay, where y represents the amount of pay, and x represents the number of hours worked. How many hours did Shelby work if she was paid $74.75?