Answer:
12
Step-by-step explanation:
0 + 1 + 2 + 3+ 4 + 5 + 6 + 7 +8 + 9 + 10 + 11 seems to equal 66. That means there are 11 + 1 = 12 people (don’t forget to count the person who shakes 0 hands)
Answer:
8.808 kilometers
Step-by-step explanation:
10-1.192=8.808
Yes, -9 can be written as a fraction over 1, meaning it is a rational number

Answer:
x+-12=18 :)
Step-by-step explanation:
I hope this helps!