Answer:

Step-by-step explanation:
y - x / xy
Answer:
9^2= 81, √25= 5, 21^2= 441, √4= 2, √144= 12, 16^2= 256, √625= 25, (-11)^2=121
Answer:
(3-4)+2*6=11
Step-by-step explanation:
3-4=-1,
2*6=12
-1+12=11
Answer:
Step-by-step explanation:
Any number that times 17 is bigger than -17