Please answer this question ASAP or my mom will beat ne

Describe all the numbers that when rounded to the nearest thousand are 645,000

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Which equation represents a circle with a center at (–3, –5) and a radius of 6 units? (x – 3)2 + (y – 5)2 = 6 (x – 3)2 + (y – 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36