What is the total length of 5.5 pieces of toy train track that measure 8.5 inches each?

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30

Find the dimensions of the circle. area = 64π in.² r= in.