Question 2: can the probability of an event 1.57 explain !

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83