What is 3/4s equal to

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

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.

Ineed someone to me answer my question i have to have this done and knocked out