No that’s equivalent to 7 + 7x
They must conform with Pythagoras theorem
It is set 4 because
(sqrt 2)^2 + (sqrt 7)^2 = 3^2
2 + 7 = 9
It will take you 2 minutes and 40 seconds to get across the walkway.
I uploaded the answer to
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bit.ly/3gVQKw3
