Question

Trevor earns $25 a day working after school at the supermarket how much money will he earn in D days

Answer 1

25d

or we can also write m for money, a formula for that, actually a function: M=25d

1) Gathering the data from the question

$25/ day

How much money in D days?

2)

1 day $ 25

2 50

3 75

D 25D

So, Trevor will earn 25D where D is the number of days He's worked.

Plug the number of Days and multiply by 25

M=25d