I really need help with this for my kid please don't just try to take the points I don't understand this new generation teaching

The graph shows the rate at which paint is used to paint a wall.enter values to complete each statement below based on the graph.when 1 gallon of paint has been used, ( # ) square feet of the wall will be painted.the unit rate is ( # )square feet per gallon.

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)