10 girls at a sleepover and each girl ate 1/4 of a bag of popcorn how many bags did they eat in all

Use set builder notation to represent the following set: { -3, -2, -1, 0}

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?