Step 1
Given;

Required; To find the difference in interest between the two periods.
Step 2
State the formula for simple interest

Step 3
Find the interest when the rate is 8%

Therefore the interest is given as;

Step 4
Find the interest in 1980 with a 20% rate

The interest is given as;

Step 5
Find the difference in interest between the two rates.

Hence, the difference in interest between the two rates = $11095.89
 
        
             
        
        
        
Answer:
I think its -12. If you apply y2-y1/ x2-x1 to the equation.
 
        
                    
             
        
        
        
Answer:
3x^2+1
Step-by-step explanation:
combine terms
 
        
             
        
        
        
To find the surface area, use this square pyramid surface area formula: Square Pyramid Surface Area = 2 x B x S + B 2 B = Width of the Square Base S = Slant length of one of the triangular faces and is calculated from the height and base width by using the equation: S= The square root of [(.5B) 2 + Height 2] .
 
        
                    
             
        
        
        
Given the exponential function:

The starting point is found when x = 0. 
So, let's substitute x by 0.

Answer: The starting point is (0, 1.004).