Which expressions are in their simplest form? Check all that apply. A. 1/3 + x7

B. x-9 - 1/y

C. 1/x3 - 1/y4

D. x3 + 1/y - t6

E. x-5 - y-4
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need help fast pls!

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation:

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