Help I don’t know the answer and please be serious

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

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