Henry sees a train with 8 cars. Each car has 5 windows on the side that Henry sees. Which number sentence
can be used to find how many windows Henry sees
on the train in all?

How is working backward similar to solving an equation?

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?

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0