This is basically the same as the other question you posted, just with different variables!! make another proportion
252 dollars/18 hours = x dollars/7 hours
252/18 is 14, so
14 = x dollars/7 hours
multiply both sides by 7 to isolate x
98 dollars = x
so john will make $98 for 7 hours of work
Answer:
72°
Step-by-step explanation:

I know that this is not the correct formula for this type of problem, but since <em>x</em><em> </em>is an acute angle, I found this answer a possibility.
I hope this is correct, and as always, I am joyous to assist anyone at any time.