Answer:Its B,C, and E man
Step-by-step explanation:
A petri dish is simply a circle; thus, we use the formula of the area of the circle which is <span>πr^2.
Given r = 40 mm
A = </span>π(40)^2 = <span>5026.55 sq. mm
</span>
Population density = bacteria count / area
PD = 2,100 / <span>5026.55
PD = </span><span>0.417782 bacteria / mm sq.
Therefore, the answer is approximately 0.418 </span><span>bacteria per square millimeter.</span>
Answer:
16 fluid ounces
Step-by-step explanation:
Mario buys 8 containers of soup.
Each container has 18 fluid ounces.
In other words, there are a total of:

144 fluid ounces.
Each of the 9 people got the same amount of soup. In other words, divided equally, each person got:

16 fluid ounces of soup.
And we're done!
Answer:
its means a varieble or an unknown value
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
Add the 5 to the 14 to get 19 for a total, divide your 19 by 152. You get 8. You then multiply the 5 from the original part by 8 to get 40.