Sara and carol agreed to split the cost of a cd which they would share. the cd had a price list of $19, they had a 20% off coupon, and then they paid 8.25% sales tax. how much did each person pay?

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.