Answer:
2/3x+4=7
x=4.5
Step-by-step explanation:
2/3x+4=7
 -4 -4
2/3x=3 (multiply by 3/2)
multiply both side by the reciprocal
x=4.5
 
        
             
        
        
        
To solve this problem you must apply the proccedure shown below:
 1. Clear the radius from the formula for the circumference of a circle and substitute values, as following:
 
 2. Substitute the radius calculated into the formula for calculate the surface area of the sphere:
 
 The answer is: 
 
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
It would be D because the formula to find slope is y divide by x. Graph D has a y of 2 and a x of 1 which you divide to get 2 which would be your answer
 
        
                    
             
        
        
        
We need the question to help
        
             
        
        
        
In a triangle, the total angle is 180 degrees. A straight line is always 180 degrees. With this in mind, the following can be obtained:

These are simultaneous equations. 
