There were 480 students who entered as the Class of 2009. Of these, 430 submitted SAT scores by the time they enrolled. If you select a name at random from this class, what is the probability that the student did not submit an SAT score

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ft²