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Nannette installed a security system in her office for $150 the monthly monitoring fee is $30. So far, Nannette has spent $420 for her security system. For how many months has sh…

Nannette installed a security system in her office for $150 the monthly monitoring fee is $30. So far, Nannette has spent $420 for her security system. For how many months has sh…
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Nannette installed a security system in her office for $150 the monthly monitoring fee is $30. So far, Nannette has spent $420 for her security system. For how many months has she had the service?

User Snowbldr
by
8.5k points

1 Answer

6 votes

Answer:

9 Months

Step-by-step explanation:420 - 150 = 270

270/30 = 9


User Nitish Kumar Pal
by
8.7k points
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