Using the chart below, calculate the average for concentration of 20 g/L

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!

5x10^11 x 65

325 x 10^11

or

325,

it would be 198 people.

hope it