f(x) = 4x + 4 means that if we put an x into our function, a 3x + 4 come out.
So in this problem, we're putting a 2 into our function which
means that a 3(2) + 1 comes out which simplifies to 6 + 1 or 7.
So f(2) = 7 or the value of the function at 2 equals 7.
10. As 8x = 2x + 60. So x =10
$44.25 .. The perimeter is 19.8, times the cost, which is 44.25
You add 25 and 12 i think
