Answer:

Step-by-step explanation:
To evaluate f(4) substitute x = 4 into f(x)
f(4) = 5 ×
= 5 ×
= 
Answer:
34 is the answer
Step-by-step explanation:
51.28
———- = 112
———
100
X
X=
X=$45.79
Answer:
100-10 = 15x
Step-by-step explanation:
You are subtracting 10 because that is how much is still left, its not included in the total spent.
15 represents the money spent per shirt, and x is the amount of shirts purchased