What is the median of this data set?

17, 42, 53, 97, 102, 82

76.5
53
67.5
42

Take the two middle numbers in numerical order (53 and 82) and add them together. Then, divide by 2.

The question from the test: Mathematical Reasoning GED.

There are three books sold in different quantities. A $10 book sells six copies. A $5 book sells five copies. A $2 book sells three copies. What is the median price of all the books sold?

Identify mode for the following data:

2, 2, 2, 2, 7, 7, 7, 7, 7, 7, 9, 9, 9, 11, 11, 13, 12, 9, 9, 9, 2, 7, 7, 7

Solve using the substitution method:

NOTE: Round long decimals to the nearest one hundredth.

y = 3x - 87
3x 2y = 21

If the product of 6 and an integer, n, is increased by 13, the result is -14. What is the value of n?

Solve for the positive value of c.

9c² - 11 = 718