I have four times as much money as my brother has. Our total is $55. How much does each of us have?

When only separate discreet points are graphed it is called?

Match each function with its rate of growth or decay

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase