Suppose that your uncle gave you 4 shirts and 3 pairs of jeans for your birthday, and you are deciding whether or not to keep the gift or exchange it for a different combination of shirts and jeans. Unfortunately, you did not get a gift receipt for the items, so the only way to return the clothing is to receive store credit for their current price.

A week later you head to the store to check out the current prices of shirts and jeans. It turns out that jeans are priced at $40 per pair and shirts are priced at $20 per shirt.

Please answer correct explain plz asap plz

Don't answer by pen paper plz