Answer:
1395 times.
Step-by-step explanation:
The Williams family open their door 28 + 17 = 45 times a day.
So in October they opened it 31 * 45 = 1395 times.
Answer : 7 or 7/1
step by step explanation:
The equivalent expression to 7^13/7^7 would be 7^6.
<h3>What are equivalent expressions?</h3>
Those expressions that might look different but their simplified forms are the same expressions are called equivalent expressions.
To derive equivalent expressions of some expression, we can either make it look more complex or simple. Usually, we simplify it.
We have given an expression as 7^13/7^7
The equivalent expression;

Hence, The equivalent expression to 7^13/7^7 would be 7^6.
Learn more about expression;
brainly.com/question/22246485
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Answer:
22.3838476568 in²
Step-by-step explanation:
First you would find the area of sector (yellow). The formula is 75/360 x π x 3².
this is equal to 5.89048622548. Now the total circle area is 3²xπ = 28.2743338823. 28.2743338823 - 5.89048622548 = 22.3838476568 in²
⭐ Answered by Foxzy0⭐
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I think the answer is D
Hope it helps