When Sarah bakes cookies, she always burns 15% of them. How many cookies does Sara need to bake so that she finishes with 68 unburnt cookies ?

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

Convert 2000 swiss francs to dutch guilders

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?