Answer:
40.5
Step-by-step explanation:
there are 4 laps in 200 metres.
(200m÷50m)
2min 42 sec=120 sec+42sec (162sec)
so,
162÷4=40.5
6 or -2
|3t - 6| = 12
3t - 6 = 12
3t = 18
t = 6
3t - 6 = -12
3t = -6
t = -2
