The composition of 2 functions is B
Answer:

Step-by-step explanation:
If you have the same denominator, you can just subtract the numerators normally and carry over the denominator.
Answer:
69.08
Step-by-step explanation:
π×d
3.14×22=69.08
Answer:

step-by-step explanation:
You have to solve this to get your answer. This is a case where you have to use the pythagorean theorem.