Tan(-163°) = .
tan 17°
-tan 117°
-tan 17°
tan 117°

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.