Your friend uses the equation y equals 8.5 x to calculate the total cost why in dollars for x movie tickets what is the concert for personality what does the concept of personality represents the situation how much will 13 movie tickets cost?

Ineed i been stuck on this question since yesterday

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?

Tell whether the two rates form a proportion