Susan has $25. She is going to spend $4 on a book, then $3 per day on lunch.

a)Write an equation that represents the following question: "How many days can Susan buy lunch using this plan?"
b) Solve your equation, and check your solution.

3 answers

a) d=(25-4)/3
b) do the rest itll be easy
7days
what is the format to solve this problem