Answer: 
Step-by-step explanation:
Given
The central angle of a sector measures 
The radius of the circle is 
The area of the sector is given by

Insert the values

120 bacteria
if 8 bacteria multiply per hour, 8 x 15 = 120 bacteria
I don't know the answer to this one but here you are
Answer:
hi, bye
Step-by-step explanation:
Thx for the free points! ;)