Can someone help me with 26 and 27?

Answer:
26.
c. C = 125 + 5.50x.
27.
22 hours
Step-by-step explanation:
The cost of a screened T-shirt is 5 + 0.50 = $5.50
So for x screened T shirts the total cost C = 125 + 5.50x .
27.
Amount of hours he worked = total income / 15
= (45 + 285) / 15
= 22