RELATIONS! Algebra 2!!!

Let f(x) =2x^2-3x AND g(x)=-4x+5. Calculate the following:
A) f(-6)
B) g(4a-5)
C) f(g(3))

Thanks!

A)

f(-6) = 2*(-6)^2 -3(-6) = 90

B) g(x)= - 4x+5

g(4a-5) = - 4(4a-5) + 5 = -16a + 25

C)

f(g(3)) = ?

First, find g(3) = - 4*3 + 5 = -7

Then

f(g(3)) = f(-7) = 2*(-7)^2 - 3(-7) = 119