What operation should you perform first when you evaluate this expression? 85 + (9 - 25 x 5) ÷ 3 * Answers:
85 + 9
9-25
25 x 5
85 ÷ 3

Solve for x, y, and z. show all steps.

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%

What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4