Lindsey earns $15 per hour for the first 40 hours she works in a week and 50% more for every hour over 40. How many hours did Lindsey work in a week when she was paid $937.50 before taxes? A. 15 hours
B. 30 hours
C. 40 hours
D. 45 hours
E. 55 hours

E. 55 hours.

Step by step:

Multiple $15x40, equals $600

Subtract $600 from $937.50, equals $337.50

50% more over 40 hours is $22.50

Divide $337.50 by $22.50, equals 15

Add 15 to 40, equals 45

So she worked 55 hours to get paid $937.50

10 - 8 = -2

  8 - 6 = -2

etc, so -2 is the common difference

step-by-step explanation: