They charge fees so they can cover there costs and return value to shareholders
slope intercept form
y=mx+b
x-y =2
we need to subtract x from each side
x-y-x = -x +2
-y = -x+2
multiply each side by -1
-1*-y = -1(-x+2)
y = x -2
the slope intercept form is
y = x-2
Answer: 7*4 is 28 square centimeters...
