John Is Trying to Decide How to Divide His Time

question 32

Multiple Choice

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 table below: $$\begin{array} { | c | c | } \hline \begin{array} { c } \text { Hours Per } \\\text { Day Cleaning } \\\text { Windows }\end{array} & \begin{array} { c } \text { Total Number } \\\text { of Windows } \\\text { Cleaned }\end{array} \\\hline 0 & 0 \\\hline 1 & 7 \\\hline 2 & 11 \\\hline 3 & 14 \\\hline 4 & 16 \\\hline 5 & 17 \\\hline\end{array}$$ The first hour John spends cleaning windows costs him ______ that he could have earned in the grocery store.

• A)$2
• B)$7
• C)$14
• D)$18

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Definitions:

Osteoclasis

The surgical breaking of a bone to correct a deformity.

Break

A pause or interval for rest or to interrupt a continuity.

Cyanotic

A condition marked by a bluish or purplish discoloration of the skin and mucous membranes due to insufficient oxygenation of the blood.

Pertaining To

Relating to or concerning something; relevant or applicable.