Determine the surface area of this cone if the radius is 4 cm and the
height is 12 cm. Round your answer
to the nearest tenth.

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Which of the following contains a variable?