The length, x, of a rectangular garden is 4 times the width, y. Cody estimates that the perimeter of the garden is 70 meters. Which system of equation models the dimensions of the garden ?
A. x = 4y; x +y=35
B. 4x = y; x+y=35
C. x = 4y; x + y = 70
D. 4x = y; x+y= 70
