Please, I'm begging a this point, please help. I'll give brainliest. Find the values of x and y. Round your answer to the nearest tenth, if necessary. You only need to do questions 7 and 8.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle