exam Maths Puzzle Numerical Ability

If I made a cube from a 1" wide by 7" long strip of paper, how would i find the area of the cube?

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exam Other Question

If x = -2, y = 3, and z = 5, evaluate the following.

(3z + y)(z + y)
Ok. Here is an example of a math problem that I cannot understand. -5/6q-(q-1/2)=1/4(q+1). How do I do this type of problem?