You can buy 5 cans for green beans at the village market for $4.00. you can buy 10 of the same cans of beans at sam’s club for $5.70. which place is the better buy?

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.