Answer:
Step-by-step explanation:
the answer is A
f(x) 3x+1
g(x) 1x
f(1x) = 3(1x)+1
f = 3x+1
g(3x+1) = 1(3x+1)
g = 3x+1
20% tip is $3.97, add that to 18.97 and you get $22.76, then add 8.25 and you get $31.01
