[tex]Hello.
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Part 1:
If 11 key chains cost 53 dollars and 35 cents, then we must simply
divide to find the cost of each key chain.
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Observe.
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53.35/11 = 4.85
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Thus, each key chain is equivalent to: 4 dollars and 85 cents.
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Part 2:
To find out the cost of 4 key chains, we must multiply 4.85 and 4
to get the answer.
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4(4.85) = 19.40
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Thus, 4 key chains costs 19.40 (Nineteen dollars and forty cents)
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You're welcome. [/tex]
