Given quadrilateral ABCD is congruent to Quadrilateral A'B'C'D', What is the measure of B'C'? 2in
14in
18in
6in

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

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%

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.