Find the first six terms of the sequence.

a1 = 4, an = 2 • an-1

Find the sum to the equation 3+6+9+

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Select the number of ways in which a line and a circle can intersect