A particular strain of bacterium has 45 bacteria in generation 1 and triples in population every generation. The explicit formula for the number of bacteria
in generation n is:
a(n) = 45 • 3(n-1)
How many bacteria are in generation 9?
A. 885,735
B. 1080
C. 6561
D. 295,245

HURRY

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?