Answer:
12
Step-by-step explanation:
First, you will have to use trigonometry. Since the side of the triangleis the opposite of the angle 53 and the hypotenuse, you will use sin.
Sin 53 degrees = opposite side / hypotenuse side. 
The opposite side is x and the hypotenuse side equals 15. 
sin53= x/15
15 ( sin 53 ) =x
x= 11.97953
Round
x=12
 
        
             
        
        
        
Answer:
(2/3)x = -11
x = -33/2
Step-by-step explanation:
2/3 of a number is -11.
Let the unknown number be x.
2/3 of x is -11.
(2/3)x = -11
Multiply both sides by 3/2.
(3/2)(2/3)x = (3/2)(-11/1)
x = -33/2
 
        
             
        
        
        
The answer would be answer choice B.
        
             
        
        
        
Answer:
12-8x
Step-by-step explanation:
18-2x(4+3) = 
18 -8x -6 = 
12 -8x
 
        
             
        
        
        
Answer:
18.66 minutes or 18 minutes 39.6 seconds
Step-by-step explanation:
23 x .19 = 4.37
23 - 4.37 = 18.66 minutes