The diameter of an automobiles tire is 30 inches. how far down the road will the tire travel if it makes one full turn. use 3.14 for pie and round your answer to the nearest inch.

Since it is just one turn, you only have to just find the circumference. If it was more than one turn, you would multiply that many turns by the circumference.
The formula for the circumference is:
2*pi*radius
or
pi*diameter

so 30 * 3.14 =  94.2 inches

Answer= 94 inches

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.