The volume of a cylinder is 47x3 cubic units and its height is x units. Which expression represents the radius of the cylinder, in units?
2x
4x
2x2
4x2

Which of the following contains a variable?

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?

What is 4(x2 – 3x) + 12x2 + x simplified? f 4x2–3x h 16x2–11x g13x2–2x i16x2–12x