# Tutor profile: Cooper P.

## Questions

### Subject: Geometry

If the area of one face of a rectangular prism is 36 with a length of 9, and the depth is 3, what is the volume?

For this problem, since we know the area of the face is 36, we simply multiply the Area by the depth of 3 to get 108.

### Subject: ACT

The boy ran to the store and bought three pairs of shoes. Before trying them on, he (unties) the shoelaces. Which of the following is correct for the word in parenthesis. A) No change B) will untie C)Untied D) Will untied

C is correct because the rest of the sentence is written in the past tense, so all verbs need to follow that pattern. Untied is the past tense.

### Subject: Algebra

70% of 50 is what?

For any percentage problem, the basic equation can be written as decimal(percent) times original amount = new amount. For above problem, 70% is 0.7 as a decimal. To get any decimal from a percentage, we divide be 100, or move the decimal to the left two places. 70. becomes 0.70 So, 0.7x50=35

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