All of the angles would be acute angles because they are less then 90 degrees
        
             
        
        
        
Answer:
19.82%
Step-by-step explanation:
Add all members that want weight lifting
47 + 21 + 14 + 29 = 111
111 / total members
111 / 560 = 0.1982
0.1982 * 100% = 19.82%
 
        
                    
             
        
        
        
Answer:
Point C
Step-by-step explanation:
If you retrieve 90 backwards, then you will get the point C.
 
        
             
        
        
        
Answer:
$13.50
Step-by-step explanation:
First, we got to multiply $18 by 25% or .25
$18 x .25 = $4.50
Lastly, we just subtract $4.50 from $18.
$18 - $4.50 = $13.50
 
        
             
        
        
        
Lets day the original price of the dvd player was $100,
36% marked down means you pay $64x
64x = $41.60
100x = 100/54 x 41.60 = 4160/64 = #65.00 = original cost 
similarly, stereo tuners = 100/78 x 69.42 = 6942/78 = $89 original cost
DVD = 65- 41.60 = $ 23. 40 less 
Stereo = 89- 69.42 = $ 19.58 less
Diffrence is $ 3.82
so your answer is the dvd player price was reduced by $3.82 more than the stereo tuner.