Using the formula V=πr² Suppose the volume of a cylinder is 785.4ft^3 and the height is twice the radius what is the radius of the cylinder. Determine the radius, rounded to the nearest whole foot.

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.