18- eliminate the parameter. x = t + 4, y = t2 answer choices: a) y = square root of x + x + 4 b) y = square root of quantity x minus four c) y = x2 + 16 d) y = x2 - 8x + 16

The 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) 48 cm2; 32 cm2; 80 cm 2 b) 48 cm2; 16 cm2; 64 cm 2 c) 128 cm2; 32 cm2; 160 cm 2 d) 128 cm2; 16 cm2; 144 cm 2