1. the expression x3+3x2+x-5 represents the total length across the front of the mansion. find the length of side i. show all work. x will stay a variable and your answer will be a polynomial.

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168