What is the range of the data in this stem-and-leaf plot?

Given that abcd is a rhombus, what is the value of x?

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.