3. Hannah has 127 books in her collection. Her school is hosting a book donation. There are z students at her school, and they each
plan to donate the same amount of books and reach a total
donation of 300 books. Write an expression to show how many
books Hannah will have left.

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)