Whats 109 divided by 27 and then simplify it

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.

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250