Shannon went to an auto repair shop and paid $339.50, which included parts that cost $112 and 3.5 hours of labor. Joni went to an auto repair shop and paid $455, which included parts that cost $310 and 2.5 hours of labor. Which correctly compares the cost of the labor?
Answer
A
Shannon paid $7 more per hour for labor.
B
Shannon paid $7 less per hour for labor.
C
Joni paid $85 more per hour for labor.
D
Joni paid $85 less per hour for labor.
Explanation
Subtract the parts cost from each total to find the labor cost. Shannon paid $339.50 − $112 = $227.50 for 3.5 hours, or $65 per hour; Joni paid $455 − $310 = $145 for 2.5 hours, or $58 per hour. Since $65 − $58 = $7, Shannon paid $7 more per hour for labor.
AI-written and checked against the verified answer.