Which calculator correctly shows the quotient of 6.47 times 10 to the power of -15

i saw this question before, dont know the asnwer srry

step-by-step explanation:

idk what the heck he answer is, i’m just putting this here so i finish my account

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!