Answer:
Step-by-step explanation:
area off reg 1 
10 x 25 = 250
area of reg 2
45 x 13 = 585
total surface area 
585 + 250 = 835ft^2
835ft^2 x $0.55 = $459.25
 
        
                    
             
        
        
        
Answer:
a = 1
Step-by-step explanation:
Given the point (a, 3) is on the line: 5x + y = 8.
Any point on the line satisfies the equation.
So, (a, 3) should satisfy the equation 5x + y = 8
Substituting x = a and y = 3, we get:
5(a) + 3 = 8

⇒ a = 1
Therefore, (1, 3) is the point on the line. 
 
        
             
        
        
        
Initial equation: 
4a / 2 = 5.2
Multiply both sides by 2: 
4a = 10.4
Divide both sides by 4: 
a = 2.6
Hope this helps!! :)