Dan is selling his comic book collection on the internet. The equation of the line of best fit for this data is y = -10x + 90, where y is comic books left and x is
the number of days he has been selling. What is the number of comic books he will have at the end
of the 7th day?

Using the given statements, state whether the conditional statement is true or false. p: 7 + 1 = 0 q: 2 + 2 = 5 is p q true or false?

The cost for an uberi is $2.50 plus $2.00 mile. if the total for the uber ride was $32.50, how many miles did the customer travel?

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.