Step-by-step explanation:
option a
x^5 -3√x^2 -18√x
G^5 -g = g(g^4 -1)=g(g^2 -1)(g^2 +1) = g(g-1)(g+1)(g^2 +1)
24g^2 -6g^4 = 6g^2(4 -g^2) = 6g^2(2 -g)(2 +g)
So 1/7 divided by 8
equals to 1/ 56 tons per trip
92.23 becuase if u subtract 213.20 by 305.43 it gives you the answer