(-8)*(-7)=(-15) 
the 2 in the beginning stays the same, and you multiply what’s in the parentheses to get (-15)
        
             
        
        
        
Answer:
   A) The annual multiplier was 1.0339; the annual increase was 0.0339 of the value.
   B) 3.39% per year
   C) $182,000
Step-by-step explanation:
A) Let's let t represent years since 1987. Then we can fill in the numbers and solve for r.
   165000 = 100000(1 +r)^15
   1.65^(1/15) = 1 +r . . . . . divide by 100,000; take the 15th root
   1.03394855265 -1 = r ≈ 0.0339
The value was multiplied by about 1.0339 each year.
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B) The value increased by about 3.39% per year.
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C) S = $100,000(1.03394855265)^18 ≈ $182,000
 
        
             
        
        
        
Y=-5x+8 I guess this is the y-intercept way
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given equation is 
We need to find the value of 

Distribute  in the right-hand side
 in the right-hand side  

Add both sides 

Now, add both sides 

Divide both sides by 

So, 
 
        
             
        
        
        
Answer: 17/5
Step-by-step explanation: isolation the variable by dividing each side by factors that don't contain the variable. z=−b5−17