Tickets to the IMAX cost $16 per person. The total cost for one family, after purchasing tickets is $64.
1. Which equation represents the situation?
2. How many tickets were purchased?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Factor the monomial completely 42a3b3

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.