Mabel Spends 4 hours to edit a 3 minute long video. She edit at a consistent rate. how long does mable spend to edit a 9 minute long video

A 9 minute video is 3 times the length of the 3 minute movie ( 9 / 3 = 3) so it will take her 3 times as long to edit it.

4 hours x 3 = 12 hours.

It will take her 12 hours.

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

2nd one in the first row is correct