The number of households in the U. S. that own homes is 79.4 million, or 63.5% of all households. Find the total number of households to the
nearest hundredth of a million.

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!