How to find the larger area of a pentagon when the smaller area is 44 in^2

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

If g(x) is an odd function, which function must be an even function?

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%