What is the standard form of the equation of the circle in the graph? (x − 3)2 + (y + 1)2 = 2 (x + 3)2 + (y − 1)2 = 1 (x + 3)2 + (y − 1)2 = 2 (x − 3)2 + (y + 1)2 = 1

Need on this geometry question. explain how you did it.

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%