Join IDNLearn.com and start getting the answers you've been searching for. Join our Q&A platform to receive prompt and accurate responses from knowledgeable professionals in various fields.
Answer: 15
Step-by-step explanation: Line them up from smallest to largest. 5, 6, 7, 8, 10, 15, 17, 20. Then do the largest number minus the smallest number. In this case, its 20 - 5. That equals 15, so thats your answer