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And now, to wrap things up, simply replace the ‘X’ in this statement with the correct number: Sonic can move at the speed of sound, which is approximately X m/s.

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Interesting fact:

Sonic is more than 25 years old, but Sonic the character is still a babe! According to the games he’s only 15 years old. Little guy hasn’t aged since 1991! Either that or all of his games take place in the same year...