Answer: 60
Step-by-step explanation:
mean: you just add all 15 numbers then divide the number you get by 15.
55+57+57+58+59+59+59+59+59+61+62+62+63+64+66=900
900/15=60
Answer: =2/15
Step-by-step explanation: Hope this help :D
A because inverse is the opposite order so instead of -3/1 or 5/1 it becomes 1/-3 and 1/5