Can anyone help me with these 3 problems?

1. Let f(x) = 4x+7 and g(x) = 3x-5. Find (g.f)(-4)
   
   

A-64

b.-61 <------ I think it's this one

c.-9

d.-32

1. Let f(x)=3x+5 and g(x)=-4x+7. Find (f.g)(-4)
   
   

A74

B-7

C23 <----- I think it's this one

D35

1. Let f(x)=4x+3 and g(x)=-2x+5. Find (g.f)(5)
   
   

a.-17 <---- I think it's this one

b.23

c.-5

d.-41



Help would be very appreciated!!!