Recycled CD, incorporated, offers a choice of 5 used CDs for $21, with each additional CD costing $5. Write a cost function for purchasing 5 or more CDs. What will the cost of buying 6 CDs be? Let x represent the number of CDs over 5.

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