Answer:
B.18
Step-by-step explanation:
2+1+3
3+3=6
6+5=11
11+7=18
Answer:
The population is: all glass recycled
The sample is: the 10 selected glass items.
The parameter is the proportion of: all his glass that is clear
The statistic is the proportion of: the selected glass that is clear
I think you forgot to add a photo
Answer: 
both zeros are irrational numbers
<u>Step-by-step explanation:</u>
Note: The question would have made more sense if if it was 2/x = x - 1 but I will answer it as written.

By changing the number into a decimal, and then moving the decimal twice to the right.