Which of the following equations represents an exponential function? A.
f(x) = -5x + 3

B.
f(x) = 2x2 + x + 7

C.
f(x) = -7x3

D.
f(x) = 2(3)x

He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2