Answer:
1000
Step-by-step explanation:
I just copied and pasted your question on google and a graph came up it may not be the answer but i tried...
When rounding, look to the next place to the right of what you are rounding to... for example if you are rounding to the nearest hundredth, look to the thousandths place to see if the hundredths place rounds up or down. Since your number, 615.44 stops on the hundredths place, the thousandths place is automatically zero, so your number stays the same.
615.44
