Please help me please

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t