Answer:
C
Step-by-step explanation:
If you plug in 4 to the equation it looks like this:
48-5= 20+23. Subtract 5 and add 23, to get 43=43. That statement is true so it's 4.
2^10 = 1024 possible ways to answer the test
7 I think, I’m sorry if I’m wrong
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