2.1-2p= -4.7
they said the difference of 2.1 and twice a number p. which I'm assuming letter p, but anyway. difference means subtraction and twice mean multiplication so 2p
that's why we have 2.1-2p= -4.7
The answer is −10d4+17d2s−6s2
Volume = area of base * height = 12 1/6 * 2 3/4 = 73/6 * 11/4 = 803/24
= 33 11/24 cubic feet
F(4)=2(4)^3-5(4)^2-11(4)-4=128-80-44-4=0
Solution is 4