During the first six months of the year, the Montgomery’s monthly electric bills were $128.45, $131.50, $112.30, $96.25, $81.70, $71.70 How can the Montgomery’s find their average monthly electric bill for the first six months of the year

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice

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.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two