Katie and Drew are going to play a game of luck 5 times. Which best represents how to find who will win more games before they start playing? a) toss a coin once and let heads represent Katie and tails represent Drew. b) toss a number cube with faces labeled 1-6 and let the prime numbers represent Katie and the composite numbers represent Drew. c) use a spinner divided into fifths labeled 1-5 and let the even numbers represent Katie and the odd numbers represent Drew d) toss a coin five times and let heads represent Katie and tails represent Drew.

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.

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)