2 Answers

Robin Pokorny · Answer 1 · 2021-07-26T04:38:37+0000

Answer:

11

Explanation:

Put the numbers in order from smallest to largest

10, 12,13, 15, 17, 18, 21,

The range is the largest number minus the smallest number

21-10

11

Please log in or register to add a comment.