It would be B. because it's just 7 times 1.5
Answer:
Runners that decrease times are not improving
Step-by-step explanation:
57 + x + x + 130 = 167
57 + 2x + 130 = 167
187 + 2x = 167
- 187 - 187
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2x = -20
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2 2
x = -10