Answer: $22.12
Step-by-step explanation:
I just did the compound interest formula which is 
starting amount * (1. interst rate) ^ number of years
example if you have 100$ and you want to know how much it is worth if it appretiates by 7% of a period of 20 years it would look something like this;
100 * (1.10) ^20 = 672.74$
but since you have to figure out what it was in 2008 which was exactly half way in the period you divide the exponent by half so your formula should be;
I know the answer is right because I asked my teacher and it's correct.
REAL EXAMPLE: 18 * (1.51) ^.5 = 22.12$
 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
Given that
19 + 7 divided by 2 - 5
So if we solve this we have to apply proper brackets 
= (19 + 7) ÷ 2 - 5
= 26 ÷ 2 - 5
= 13 - 5
= 8
After solving this the answer is 8
 
        
             
        
        
        
.75 is the answer because it looks like division
        
                    
             
        
        
        
Answer:
<h2>
         RS = 47</h2>
Step-by-step explanation:
RV=VU and SW=WT    ⇒    
Therefore:

3x + 5 = 4x - 11        {subtract 5 from both sides) 
3x = 4x - 16             {subtract 4x from both sides) 
-x = -16                   {divide both sides by (-1)}
x=16
So:
RS = 2x + 15 = 2×16 + 15 = 32 + 15 = 47
 
        
             
        
        
        
If the price went down $5 per day for four days straight, then it would have went down $20 total after the four days.