"a ∝ b" means "a is proportional to b", which in turn means there is some constant k such that
a = kb
We're given that a = 18 and b = 3, so that
18 = 3k   ⇒   k = 6
Then when b = 5, we would have
a = 6 × 5 = 30
 
        
             
        
        
        
Answer:
The answer is 6.3
Step-by-step explanation:
 
        
             
        
        
        
Well, one advantage simply is that its a loan.  If its a loan, you can pay little by little until its paid off.  Not sure if this helps, but I hope it does.  
        
             
        
        
        
The volume is (area of cross-section) x (length) . 
-- The cross-section is a triangle.  The area of a triangle is
Area = (1/2) (base) (height) .
In this one, the base is 9/4 m and the height is 3-1/3 m .
Area = (1/2) (9/4 m) (3-1/3 m)
Area = (1/2) (9/4) (10/3)
Area = 90/24 m² .
-- Volume = (area of cross-section) x (length)
Volume = (90/24 m²) x (7-1/3 m)
Volume = (90/24) x (22/3) m³
Volume = (1,980 / 72) m³
<em>Volume = 27.5 m³  </em>
 
        
             
        
        
        
Answer:
1)Add 19
2)Multiply by 5
Step-by-step explanation:

Adding 19 to both sides.

Multiplying 5 to both sides.

∴