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Liula [17]
3 years ago
10

Casey was the first customer to receive both a free cookie and a free muffin. What number customer was Casey? Show or explain ho

w you got your answer.​
Mathematics
1 answer:
faust18 [17]3 years ago
3 0

Answer:

she was the 18th customer

Step-by-step explanation:

every 6 gets a cookie and every 9th gets a muffin

she is the third to get a cookie and the second to get a muffin.

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Step-by-step explanation:

Since we have given that

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\sum_{n=1}^{5}4^n\\=4^1+4^2+4^3+4^4+4^5\\

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