hannah earned something extra money baby sitting after stocking up on candy she only had 1/3 oh her earnings left she then spent $12 on a new hat what were her earnings if she has $20 left

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