Lorry got 72 marks at the last History test. And he got 90 marks at the recent History test. What was the percentage increase of score Lorry got in the exams?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.