Answer: 
The answer is 0.8788
 Step-by-step explanation:
<em>From question given, let us recall the following:</em>
<em>We know that  Ƶα /2  * √p (1-p)/n</em>
<em>when we use  n≤  5000/10 =500</em>
<em> P = 0.75</em>
<em>The Margin of error = 0.03</em>
<em>Putting this values together we arrive at </em>
<em> Ƶα/2 = 0.03/√0.75 * 0.25/500 </em>
<em>= 1.549</em>
<em>Now,</em>
<em>Ф (1.549) = 0.9394</em>
<em>Therefore the confidence level becomes:</em>
<em> 1- (1-∝)/2 = 0.9394</em>
<em>∝ = 0.8788</em>
<em>The answer is 0.8788</em>
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520 pages. 390 divided by 3 is 130. Take that times 4 and you get 520. To check it, I took 520 divided by four (or you can multiply by 1/4) and got 130. Hope it helps!
        
             
        
        
        
1,000 miles is the total length of the trip
        
             
        
        
        
Answer:
2b+9
Step-by-step explanation: