16 Your local grocery store is having a
special on soda. They're selling a
12-pack of 12 oz. cans for $4.50. The
20 oz. bottles are also on sale for
$0.75. Should you buy one 12-pack of
12 oz. cans or seven 20 oz. bottles?
e
-.2
6.RP.2

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal