Rubi charges each family that she babysits a flat fee of $20 for the night and an extra $7 per child. She makes a total of $90. Write a two-step
equation that would show how many children she babysat.

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