In this question, it is given that :
The total amount of money M earned by washing cars at the school fundraiser is proportional to the number of cars , c , washed at the constant Price ,p .
That is , for number of cars,1, we will get
[tex] M = p [/tex]
For number of cars,2, we will get
[tex] M = 2p [/tex]
For number of cars,3, we will get
[tex] M= 3 p [/tex]
Therefore for number of cars,c , we will get
[tex] M = cp [/tex]
Correct option is D .
