To calculate Greg's monthly homeowners insurance premium, we first need to determine the annual insurance premium based on the home's value and the given rate.
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Find the annual premium:
- The home value is $450,000.
- The rate is $0.42 per $100 of value.
- We convert the home value into "per $100" units: \[ \text{Home value in units of 100} = \frac{450,000}{100} = 4,500 \]
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Calculate the annual premium: \[ \text{Annual premium} = 4,500 \times 0.42 = 1,890 \]
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Convert the annual premium to a monthly premium: \[ \text{Monthly premium} = \frac{1,890}{12} = 157.50 \]
Therefore, Greg will have to pay $157.50 on a monthly basis to keep his home insured.
The answer is b. $157.50.