Please help): Dont give a link because its not working. Estimate the product of 408 - 52 by first rounding each number to the nearest ten.
A: 20,000
B: 460
C: 450
D: 20, 500​

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