Please help explain this answer

The answer is E

You start by taking the area of the border of the frame 18*15=270 Then you subtract that number by inner section of the frame. Let's call it L*W So the area of the frame itself would be 270-L*W Now, it's stated that the picture has the same area of the frame itself which means 270-L*W=L*W By simplif...

The problem in your thread is written wrong. Here's how the problem should look like:

[3x^2(x-2)-x+2]/(x-2) <--notice i removed a set of parentheses. This is key, because you then break the equation into this:

[3x^2(x-2)]/(x-2) minus (x-2)/(x-2)

which then gives you

3x^2 - 1

PS - coordinate system - please help

In the xy-coordinate system, if (a, b) and
(a + 3, b + k) are two points on the line defined by the equation x = 3y – 7, then k =

(A) 9
(B) 3
(C) 7/3
(D) 1
(E) 1/3

The answer is D

Please help with PS question

The inside dimensions of a rectangular wooden box are 6 inches by 8 inches by 10 inches. A cylindrical canister is to be placed inside the box so that it stands upright when the closed box rests on one of its six faces. Of all such canisters that could be used, what is the radius, in inches, of the ...

PS - equality problem - please help

The answer is C


I do not understand why the answer is not D Can someone please explain why?

Percentage reduction problem - Help wanted please

A part-time employee whose hourly wage was increased by 25 percent decided to reduce the number of hours worked per week so that the employee’s total weekly income would remain unchanged. By what percent should the number of hours worked be reduced? (A) 12.5% (B) 20% (C) 25% (D) 50% (E) 75% The answ...

Yes, the correction answer is B. Can you explain this further?