The local park has 4 bike racks. each rack holds15 bikes. there are 16 bikes in the bike racks. which expression shows the total number of empty spaces in the bike rack? a. (15×16)+4
b. (15×16)-4 c. (4×15)+16 do. (15×4)-16

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

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.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.