If we consider it as a combination problem, then we could calculate the how many combinations are there if we pick up three nodes out of six nodes, and then we have:

And the answer should be 20
0.09 is nine hundredths.
0.009 is nine thousandths.
You are correct.
This is a word problem so translate to math so this is asking 6+(4/2) which is 8
Answer:
414,000
Step-by-step explanation:
When rounding to the nearest thousand, you need to focus on the hundreds column. Because the unit is 5, you round up (5,6,7,8,9 determine rounding up). Therefore the 3 in the thousands column becomes a "4".
Answer:SPssp=631.68
Step-by-step explanation: