Original shirt cost: $55
current shirt cost: $40
find the percent of decrease.
[? ]%
round to the nearest whole percent.

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?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.