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I can't figure the following questions out:

1) For all real numbers v, the operation V* is defined by the equation V*=V-V/3. If (V*)*=8, the v=

A)15
B)18
C)21
D)24
E)27

The answer happens to be B)18

2) A rectangular tabletop consists of a pice of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop is x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?

Is it just me? Cause I think some of these problem solving questions are just poorly worded. I didn't understand the problem until I saw how above posters tried to solve it.

So basically, it's asking for what value of the length(x/3) does the perimeter equal the area?

If so, it clearly can't be 10 because A=30 and P=26, not a very good approximation.