Parallelogram P was dilated to form parallelogram p'

What is the value of x?

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution