👆🏼Solve 4x^{2} – 25 = 0

👇🏼Michael organises his books into

groups of 32. He then organises them

into groups of 28.

What is the smallest possible number

of books that Michael has.

🖐🏼Simplify

👉🏼Simplify

AOC is an equilateral triangle of side length 14cm.

OBD is a sector of circle with centre O and radius 11cm.

👈🏼Calculate the area of the shaded region

as a percentage of the area of triangle

AOC.

Give your answer correct to 3 significant

figures.