The manufacturer of a cd player has found that the revenue r (in dollars) is r(p) = -5p2 + 1510p, when the unit price is p dollars. if the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?

Nick estimated that 5/8+4/7 is about 2.explain how you know his estimate is not reasonable plz and fast i will give 50 points

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

What’s the range cuz i can’t find it?