What is the area of this shaded portion? (Use 3.14 for pi) please help me

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

This is about circle theorems. someone asap : (

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?