Answer:
3^2, 9 students.
Step-by-step explanation:
I'm not 100 percent sure about this but I'm pretty sure that because there are 3 rows you can just do 3^2 which is 9.
Answer:

Step-by-step explanation:
2 divided by 6 is 
To confirm it,

You are right to circle both 10 or 12. Neither can be solved without knowing something about the x values in 10 and the x value of the smaller base in 12.
None of the above, it's a hard one alright!
It is a rational number because 98.45 can be turned into a fraction.