A package of 4 pairs of insulated costs $21.96. What is the unit price of the pairs of ?

The product of two negative rational numbers is always zero sometimes zero never zero

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?