In 10 years, the population of Detroit fell from 950,000 to about 712,500. Find the total percent decrease.

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

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

If a is a nonzero real number then the reciprocal of a is