PLEASE SOLVE ASAP! Ms Liu has $40 to buy water and popcorn at the movie theater. Popcorn costs $8 per bag and water costs 3$ per bottle. Write an algebraic expression that can be used to find the amount of money Ms Liu will have left if she buys any number of bags of popcorn (p), and any number of bottles of water (w).

Solve the blanks.
The algebraic expression represents the amount of money Ms. Liu will have left if she buys any number of bags of popcorn and bottles of water.

Ms Liu will have $ left if she buys 3 bags of popcorn and 4 bottles of water.

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.