
Mark M. answered 10/09/15
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
f(x) = 4x - 1
g(x) = 5x
fog(x) = 4(5x) - 1
fog(7) = 4(5(7)) - 1
fog(7) = 4(35) - 1
fog(7) = 140 - 1
fog(7) = 139