Answer:
0.25 or 1/4
Explanation:
Probability is calculated by the item you are looking for divided by all the items in the list.
In this case you should divide the number of math-history books to all the other books in the bookshelf.

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The approximate amount of interest that louisa would have paid over the course of the year is; $200.
<h3>How to Calculate Simple Interest?</h3>
The amount of interest accrued in simple interest is given by the formula:
E = P*i*t
Where;
P is the balance.
i is the interest rate.
t is the time.
We are given;
Balance; P = $1,000, hence
APR of 19.99% and so i = 0.1999
time; t = 1 year.
Thus, the amount she will pay is:
E = 1000 * 0.1999 * 1
E = $199.9
Approximating to a whole number gives;
E = $200
Read more about Interest at; brainly.com/question/25437855
The smallest unit of matter
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