What is the slope of (10,150) and (1,-75)

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.

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?