Aright cylinder has radius 9 cm and height 12 cm. if the radius and height are tripled, what happens to the surface area?
a: the surface area is multiplied by 9.
b: the surface area is multiplied by 1/3.
c: the surface area is multiplied by 6.
d: the surface area is tripled.

Given abcd ac=38 and ae=3x+4 find the value of x

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

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.