Sarah bought 8 folders and 3 rulers. lea bought 8 rulers and 3 folders. sarah paid $1.25 more than lea. how much was each folder if each ruler was .45

What is the first quartile of the data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

Standard deviation of 19,29,21,22,23

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.