Need help asp being timed

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Which of the following shows the length of the third side, in inches, of the triangle below

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