Answer:
A) Samuel traveled faster in the first 15 minutes than he did in the last 15 minutes
Step-by-step explanation:
This is the only true option. B is incorrect because he traveled a different amount of miles (meaning at different speeds), so he couldn't have traveled at a constant pace. C is incorrect because Samuel traveled faster in the period than the second. D is incorrect because he traveled 6 miles first, than 4 miles. Add them to get a total of 10 miles, not 9.
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