(6x+4) hope this helped
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Answer:
x = 34
Step-by-step explanation:
Angles are supplementary:
x + 7 + 4x + 3 = 180
5x + 10 = 180
5x = 170
x = 34
The rule is that the angle is half the measure of the intercepted arc. So it's 110.
330 miles / 5.5 hours
= 54.54 miles/hour.
Glad I could help!