B
Simplify to 2 x 7 because they are both being divided by 8, so they cancel each other out.
D= sqrt( (6-4)^2 + (5sqrt2 - 3sqrt2)^2 )
It's d= 3,46 i think
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Method 1
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Since the numerators are the same, the smaller the denominators, the greater the fraction is.
Arranging from the least to the greatest

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Method 2
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Lets change all to the same denominators



Now that all the denominators are the same, we can arrange the fractions by comparing the numerators. The bigger the numerators, the greater the fraction.
Arranging from the least to the greatest
7+13+1.5=21.5
If he did it again the way back, it's 21.5 times 2.
He went a total of 43 blocks.
-sinx + C
hope this helps!