An elephant weighs about 1.5 x 104 pounds. A blue whale weighs about 3 10 5 pounds. About how many times heavier is a blue whale compared with an elephant?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

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