Help!!i don’t understand.

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Can someone me with the property questions for 12 13 and 14 plz

A3cm×3cm\greend{3\,\text{cm} \times 3\,\text{cm}} 3cm×3cm start color greend, 3, space, c, m, times, 3, space, c, m, end color greend rectangle sits inside a circle with radius of 4cm\blued{4\,\text{cm}} 4cm start color blued, 4, space, c, m, end color blued . what is the area of the shaded region? round your final answer to the nearest hundredth.