The function $\"\"$ .

Where t is time in hours.

A is initial amount of bacteria.

B is the number of bacteria after some time t .

find how many hours it take for the number of bacteria to reach $\"\"$ .

Initial number of bacterial present is $\"\"$ .

Number of bacteria to reach after time t is $\"\"$ .

$\"\"$

$\"\"$ .

It take $\"\"$ hours number of bacteria to reach $\"\"$ .

Find the average rate of change in bacteria per hour.

Average rate of change in bacteria per hour

$\"\"$

$\"\"$ .

Average rate of change in bacteria per hour is $\"\"$ .

It take $\"\"$ hours number of bacteria to reach $\"\"$ .

Average rate of change in bacteria per hour is $\"\"$ .