The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 17 mph and the mystic travels at 20 mph. how far apart will they be in 2 hours?

(write as unit rate) 12 meters in 2.8 seconds =

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)