Answer:
[See Below]
Explanation:
For 5 hours: f(5)
f(5) = 9(5) + 10
f(5) = 45 + 10
f(5) = 55
Bill would work earn $55 if he worked for 5 hours.
For 12 hours: f(12)
f(12) = 9(12) + 10
f(12) = 108 + 10
f(12) = 118
Bill would work earn $118 if he worked for 12 hours.
Hope this helps.