7. Mario had some money in his bank account. For his birthday, he received $85 and
deposited it into his bank account. He now has $315 in his bank account. Write a
solve an addition algebraic equation to find how much money Mario originally hac
his bank account.
Fauntion:

Agroup of five people go out to eat and buy appetizers and main dishes they decide to split the bill so each person pays 20% of the total cost appetizers are $5 and main dishes are $10 write an expression to show how much each person pays explain it with how to solve the problem