Number of earthquakes decreased
Answer:
First option is the right choice.
Step-by-step explanation:


Best Regards!
Answer:
7.5 m = 0.0075 km (Correct)
0.31 = 310 mm (Correct)
46 m = 4,600 cm (Correct)
457 mm =4.57 cm (Incorrect)
0.6 km = 6,000 m (Incorrect)
Step-by-step explanation:
Tell me if something is wrong.
Answer: 

Step-by-step explanation:
Given
Alex Jogged 3 rounds of 400 m track
It took 16 min to Jog 3 rounds
(a) Total distance Alex had Jogged

(b) Average speed is the total distance by the total time
