B is the answer it is the only othe shplape
<h2>
Answer:</h2>
variance measures variability from the average or mean. It is calculated by taking the differences between each number in the data set and the mean.','.
15 x 25 = 375
15 x 50 = 750
375 + 750 = 1,125
She has 1,125 books.
X=-12,0
Y=-0,12 hope this helps:/
