Explain how you can use place value to discribe how 0.05 and 0.005

Answer this question only if you know the 30 points and

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

What is the average rate of change for this function for the interval from x=2 to x=4 ?