You could buy 135 MP3 songs.
($304.25 - $149 = $155.25 | $155.25 / 1.15 = 135)
        
                    
             
        
        
        
Answer:
y=63
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
6% of the changes were from incorrect to incorrect
Step-by-step explanation:
The sum of the percentages must be 100%.
We have these following percentages
65% of the changes were from incorrect answers to correct
29% were from correct to incorrect
P% were from incorrect to incorrect
So



6% of the changes were from incorrect to incorrect
 
        
             
        
        
        
30°, 70°, and 80°.
It is an acute-angled triangle.
Explanation:
The ratio of the measures of ∠s in Δ is 3:7:8.
So, let us suppose that the measures are, 3k, 7k, 8k.
Evidently, their sum is 
180°.
3k+7k+8k=180
18k=180
k= 10
Hence, the measures are, 
30°, 70°, and 80°.
As all the angles are acute, so is the triangle.