The length of a rectangle is 10 in. what is the perimeter of the rectangle if the width is 7 in. less than the length? a. 26 in. c. 30 in. b. 13 in. d. 54 in.

How do i do this? i don’t understand

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Find the domain and range of the following function f(x) = 51x - 21+ 4