A falling object travels a distance given by the formula d=4t+4t2, where d is measured in feet and t is measured in seconds. How many seconds will it take for the object to travel 76 feet? Round the answer to 4 decimal places.

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?

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible