During its exponential growth phase a colony of the bacteria e. coli grew from 5052 cells to 39,845 cells in 60 minutes how long will it take the colony of 5052 cells to grow to 200,000 cells?

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?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.