Answer:
20 or D.
Step-by-step explanation:
You simply plug in the values given for a and b:

So, your answer is 20.
Hey!
The answer is option c).
√9 is a rational number as √9 = 3..
while √10 is an irrational number..
Hope it helps^^
Answer:
32 pi
Step-by-step explanation:
im sorry if im wrong im not the smartest haha
Answer:
9 by -2
Step-by-step explanation: