Angela is 7 inches shorter than Valerie. Valerie is x inches tall. Write an algebraic expression for Angela's height.

The chart below shows the distribution of weeds in yard

3382-299=3383- ? fill in the blank?

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.