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Answer: 
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Step-by-step explanation:
- Cross-multiply.
- Divide both sides by 9.
67.5 as distance = rate x time
So rate would equal distance / time
Rate = 22.5 miles / 1/3 hour
Rate = 67.5 mph
<em>You've simplified it as much as possible.</em>
<em>Let x equal length of flight in hours.</em>
<em>At first, the inequality was:</em>
<em>x ≈ 5</em>
<em>But with the delay, the inequality is now</em>
<em>x ≥ 6.</em>
So taking (0,-2) and (-3,-6) then it is -2-(-6)/0-(-3) or 4/3