Is 35 in , 45 in , 55 in, a right triangle or not

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

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.

Which inequality has a dashed boundary line when graphed ?