To get the total cost. Given the cost of the sofa to be 

We will first find the amount of the tax paid, we will find 6.5% of the sofa

This will be

The final step will be to add up the tax and that of the sofa

Therefore, the total cost will be 
 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
<u>Three faces are equal triangles with:</u>
- base = 8 units, height = 6 ft
<u>The base is a triangle with:</u>
- base = 8 ft, height = 6.9 ft
<u>Surface area is sum of areas of 4 faces:</u>
- S = 3*(1/2*8*6) + 1/2*8*6.9 = 99.6 ft²
 
        
                    
             
        
        
        
29.8 ÷ 3 is 9.9333 repeating
        
                    
             
        
        
        
Answer:
Height= 4.5 Volume= 91.125
Step-by-step explanation: