Naruto bought a 3 bowls of ramen for $12.50 each. He got a $5.63 discount on his bill. What percent discount did he receive? Please help this is due very very soon

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.

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

What is the difference between the equations of a vertical and a horizontal line?