The second pair because it would practically be a vertical line.
Answer:
c
Step-by-step explanation:
To determine the speed in metres per second.
1 hour = 60 minutes
1 minute = 60 seconds
1 hour 3600 seconds.
600 km/ 3600 seconds or 6 km/36 s or 1 km/6 s
1000 m/6 s
Divide the values to find the measure in one second.
If you multiply -8 and -9 it's 72 because If you multiply two negatives it turns into a positive number/answer and if you add -8 and -9 it's -17.
-8 + -9 = -17
and
-8 * -9 = 72