Leo has a total of 45c. he has some dimes and pennies . how many different combinations of dimes and pennies could leo have? make a table to solve.

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!