Do u know number 5??? Don’t know what it is but it’s not A

Answer:
B.
Step-by-step explanation:
What you want to do, is 65,470.5 - 3,219.2.
65,470.5
- 3,219.2
________
(Go from right to left)
1. 5-2=3
2. 0-9 isn't possible in this case, so borrrow 1 form 7. 7 becomes 6, and 10-9=1.
3. 6-1=5
4. 4-2=2
5. 5-3=2
6. 6-0=6
7. Carry down the comma and the decimal. You then get: 62,251.3, which is B.