9×2=18. add the tow zeros like this 9×2=18+00=1,800
Answer:
0.278
Step-by-step explanation:
5 + 4 = 9
*
= 0.2777...
Try to do the others on your own using the information I gave you.
Answer:

Step-by-step explanation:
The 10 represents the speed traveling downsteam while the 3 represents speed upstream. Downstream you have the help of the current, so it would be x + 2, upstream you are working against the current so it would be x - 2.
Answer:
parallel
Step-by-step explanation:
they have same slope