Ordinary brass contains 61.6% copper 2.9% lead 0.2% tin and 35.3% zinc. How many pounds of each metal would be in Ib . of brass?

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?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

What is the lcm of 16 and 40 ? 24 and 40 ?