John got the following scores on his tests. what is the interquartile range of his scores? 78, 57, 90, 60, 89, 69, 95

a. 18

b. 20

c. 30

d. 38

Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)

The rectangle on the right is the image of the rectangle on the left. what transformation would result in this image? reflection rotation translation dilation

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.