Last spring, the drama department at manchester high school had 12 students audition for the musical. this spring, there were 15 students trying out. what is the percent of increase in the number of students auditioning? i'm reposting this because no one has answered it yet

How many sides does a regular polygon have if each exterior angle measures 72a.3b.4c.5d.6

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?