If you would like to convert meters to kilometers, you can calculate this using the following step:
1 meter = 0.001 kilometers
1900 m = 1900 * 0.001 km = 1.9 km
If the tunnel is about 1900 m = 1.9 km long, then this is a little less than 2 km, because 1.9 km < 2 km.
The expression would be 19x-9. The reason is because if you think about it, it says that there is 9 less than 19x (x would be the unknown number) I hope this helps! ^-^
Answer: m=-11
Step-by-step explanation:
To find the slope of the line, you want to use formula
. Since we are given two points, we can directly plug them in and solve.

Now, we know that the slope is -11.
Answer:
The answer is 9x + 18
Step-by-step explanation: