The area of a particular rectangle is exactly equal to its perimeter. If it's length is 4 meters long, what is its width?

Can you please help me..Thank you!

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.