The expression shown can be used to calculate the amount of money in dollars a grocery store customer should receive in change when paying with $50.
50 - (14 + 12 + 2(5) + 2(2) + 3)
What amount of change in dollars should the customer receive?

Asmall car averages up to 29 more miles per gallon of gas that an suv. if a small car averages 44 miles per gallon, what is the average miles per gallon for an suv?

What term best describes a line ans a point that lie in the same plane

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.