Answer:
The total cost of their purchases is 5s + 2p = 100
Explanation:
I am going to say that:
The price of a sweater is s.
The price of a pair of pants is p.
Matt and Carla each spent $100 at the mall. Together they bought five sweaters and two pairs of pants
5 sweaters: 5s
2 pairs of pants: 2p
Total:
5s + 2p
Since the total is 100:
5s + 2p = 100
The total cost of their purchases is 5s + 2p = 100