Question

HELP REALLY QUICK 20 POINTS!

Answer 1

The answer should be 18%

Answer 2

18%

Explanation:

To calculate percentage improvement use

percentage improvement =
`(improvement)/(original)` × 100%

Change time to seconds

3 minutes 20 sec = (3 × 60) + 20 = 200 seconds

2 minutes 44 seconds = (2 × 60) + 44 = 164 seconds

improvement time = 200 - 164 = 36 seconds, hence

percentage improvement =
`(36)/(200)` × 100% = 18%