It is 400.
400
390
400
400
400
400
400
That depends on the value of A.
60
36,184 rounded to the nearest ten thousands place is 40,000.
2602 rounded to the nearest ten is 2600.
20
That depends on the value of A.
0.40
400
400
394 rounded would be 390, but when you add 1, 395 is generally rounded up to 400.
60
It is then 740 when rounded to the nearest ten.
30
36,184 rounded to the nearest ten thousands place is 40,000.
2602 rounded to the nearest ten is 2600.
320
20