Answer:
x= 30
Step-by-step explanation:
3x + 50 = 140 
3x = 140 -50
3x = 90
x = 90/3
x = 30
 
        
                    
             
        
        
        
Answer:
95 in.²
Step-by-step explanation:
Total surface area of the rectangular pyramid = 4(area of triangle) + area of rectangle 
Area of triangle = ½*base*height 
base = 5 in.
height = 7 in.
Area of triangle = ½*5*7 = 17.5 in.²
Area of rectangle = Length*width = 5*5 = 25 in.²
Plug in the values 
Total surface area of the rectangular pyramid = 4(17.5) + 25 
= 95 in.²
 
        
             
        
        
        
Answer:
Whats the question?
Step-by-step explanation: