Plz help meh guyz I need this ty ima be afk but plz still answer this

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

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.

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x