The Alliance to Save Energy seeks to increase energy efficiency through A) petitioning consumers to change their habits

B) lobbying for policy changes

C) reducing greenhouse gases

D) increased spending on consumer goods

E) education programs in the public schools

Answer moral guide 

You're asking in the ap section, so i'll give the ap calculus-style answer. alternatively, you can find the vertex of the parabola and use the "y"-coordinate as the answer.

the maximum height can occur at a critical number, that is, a number  such that  .

the derivative of  can be calculated as follows:



find a value of  that is a zero of the derivative:


this is parabola that is opening downward; we can assume there is a maximum at  .

to find that maximum, calculate  .