Answer:
You didnt put a graph on here but all you gotta do, is add each day up then divide by how many days he works and you got your answer
Step-by-step explanation:
y = t/31 - d/31
Solve for y:
d + 12 y = t - 19 y
Subtract d - 19 y from both sides:
31 y = t - d
Divide both sides by 31:
Answer: y = t/31 - d/31
I NEED HELP ON THIS ASAP