Stefan has 4 1/2 cups of oats. He uses 3 ¼ cups to make granola bars for a camping trip. He saves the rest of the oats to feed to his parrot, Coco. If

Coco needs 1/4 of a cup of oats each day, how many days can Stefan feed

Coco with the oats he has left? Write your answer simplified fraction
with working.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

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.

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.