A local hamburger shop sold a combined total of 805 hamburgers and cheeseburgers on Wednesday. There were 55 more cheeseburgers sold than hamburgers. How many hamburgers were sold on Wednesday?

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

Write the following as a base and exponent

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%