John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table.

A second hour cleaning windows will yield additional earnings of ________.
A)$2
B)$14
C)$8
D)$7

Question

John is trying to decide how to divide his time between his job as a stocker in the local grocery store, which pays $7 per hour for as many hours as he chooses to work, and cleaning windows for the businesses downtown. He makes $2 for every window he cleans. John is indifferent between the two tasks, and the number of windows he can clean depends on how many hours he spends cleaning in a day, as shown in the accompanying table.  
  
A second hour cleaning windows will yield additional earnings of ________.
A)$2 
B)$14 
C)$8 
D)$7

Quizplus · Accepted Answer

In the second hour John spends cleaning windows, he cleans 4 additional windows and earns $2 per window for a total benefit of $8.

John Is Trying to Decide How to Divide His Time