Ratio of 8 smiles to 4 peace signs

there are 3 ways to wright this as a ratio:

(1.) 8:4

(2.) 8/4

(3.) 8 to 4

Step-by-step explanation:

hope this helped!

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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!