The effectiveness of a television commercial depends on how many times a viewer watches it. after some experiments an advertising agency found that if the effectiveness e is measured on a scale of 0 to 10, then e(n) = 2 3 n − 1 84 n2 where n is the number of times a viewer watches a given commercial. for a commercial to have maximum effectiveness, how many times should a viewer watch it?

Sara has been reading about different types of financial grants, including federal pell grants, academic competitiveness grants, smart grants, and teach grants. which statement about these grants is true? filling out a fafsa will not her apply for these grants. she will not have to pay back any funds she receives from these grants. these grants only go to students with less than a 3.0 gpa. she will have to pay back all the funds she receives from these grants.