katie can build three staircases to make 36 obstacles against the other player. how many staircases will she need to make 24 obstacles?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?