Respuesta :

Answer:

20.136-20.14

Step-by-step explanation:

??????64 to the nearest whole number.?? what do u mean??
The answer is 21. 8 and 12 are your whole numbers 1 is less than 5 so 8 rounds to 8. Then 6 is greater than 5 so 12 rounds to 13. 8+13=21