A college student mows lawns to cover his weekly expenses. The student charges ​$10 for each hour he spends .mowing lawns Identify the related and unknown quantities.
Which two unknown quantities in this situation are​ related?
A.
The amount of money the student earns
B.
The number of college students mowing lawns
C.
The number of hours the student spends mowing lawns
D.
The number of lawns the student mows