Answer: 56/33
Step-by-step explanation:
Answer:
try to use socratic
Answer:28
55-15-12=28
f(fx) = 64x + 81
f(x) = 8x + 9
f(fx) = 8(8x+9) + 9
= 64x + 72 + 9
= 64x + 81
(Correct me if i am wrong)