Question:
Rachel and Elijah received a fixed amount of money every month. In the 1st month, Rachel spent $5.60 per day and Elijah spent $2.80 per day. Rachel had $39.20 left when Elijah spent all his money. In the 2nd month, Rachel spent $2.80 and Elijah spent $5.60 per day. Rachel had $140 left when Elijah had spent all his money. How much money did Rachel receive every month?
Solution:
