If (x+2)^2 = (x-5)^2, what is the value of x^2-1

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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

What is x and y intercepts for y=x+7