Hannas school her to the book donation there are 150 students at her school and they Donated a total of b books Hannah do need it three times as many as the average number of books each student donated how many books did Hannah donate

She donated b/50 books

Step-by-step explanation:

In this question, we are we are told 150 students donated a total of b books. The average number of books donated by each student will be:

The total number of books/ the total number of students.

The average number of books is this b/150.

Now, we are also told that Hannah donated 3 times the average number of books.

This is simply calculated by multiplying the average number of books donated by 3

This is equal to 3 * b/150 = b/50 books

Hence, Hannah donated b/650 books

30005

yes ok                                            

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).