a car needs fixing and Abe can fix it for 70$ per hour with a 130$ part, but Gabe can fix it for 80$ per hour with a 40$ part. How long will it take for both Abe and Gabe to cost the same amount.

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%

Find the area of the triangle shown 3 by 6

Which best explains why this triangle is or is not a right triangle ?