Answer:
domain is x range is y
Step-by-step explanation:
commutative
A. 72
B. 3
C. 135
A. 12 x 6 = 72
B. 15 x 3 = 45 so Nina raise 3x more money than Sandra
C. 45 x 3 = 135
F(h+9)
Mutiply the bracket by F
(F)(h)= Fh
(F)(9)= 9F
Answer : Fh +9F or 9F+Fh