The diagram shows a velocity-time graph of a motorbike for 25 seconds.
a) After how many seconds was the acceleration zero? seconds
b) What was the distance travelled in the last 15 seconds? metres
Velocity (m/s)
10 Time (s)15
20
25

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

What is the sum of these mixed numbers 2 1/8 + 4 3/8

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).