Answer:
124
Step-by-step explanation:
3x5/15=1
1+3(6+35)
1+18+105=
124
The shortcut is the hypotenuse of a right triangle with legs 6 and 8, so 6²+8²=c²
36+64=c
100=c²
c=10.
so he traveled 6+8+10=24km
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this is the answer hope it helps