Amelia claims that if she doubles the length and width of the base of a rectangular prism and triples the height, she has increased the volume by a factor of 12 (2 × 2 × 3). What would you tell her?

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?