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Gekata [30.6K]
3 years ago
6

Riley buys a swim pass for the pool in January. The first month costs $30. Each month after that, the cost is $20 per month.

Mathematics
2 answers:
lukranit [14]3 years ago
7 0

Answer: $250

Step-by-step explanation:

Zanzabum3 years ago
6 0

Answer:

you pay 240 dollars a year

Step-by-step explanation:

y=20x

x is 12

20*12=

240

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meriva

Answer:

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Critical value is z = 2.58

Step-by-step explanation:

First of all let's find margin of error. It is given by the formula;

ME = zσ/√n

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