35% of the children in a school have a dog, 40% have a cat, and 25% have a dog and a cat.
What is the probability you have a dog, giving you have a cat?

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