The function:
f ( x ) = x * 0.965^t
where x is the initial amount and t is the number of the years
80 = x * 0.965^3
80 = x  *  0.89632
x = 80 : 0.89632 ≈ 89
Answer:
The initial amount of animals was 89.
        
             
        
        
        
The question that can complete the given word problem is, The material comes in pieces of 5 years each. <em>How many </em><em>pieces</em><em> of </em><em>materials </em><em>are needed to </em><em>make a coat</em><em>?</em>
<h3>What question can be formed?</h3><h3 />
You are given the number of yards that are needed to make a coat so the question should be centered around that. 
Questions that go best with such information are those that have to do with solving for the number of materials that would be needed to make the coat. 
You can therefore supply the length of each piece of material, and then find out how many materials would then be needed to make a coat. 
Find out more on formulating questions at brainly.com/question/11876376.
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Answer:
9:5
Step-by-step explanation:
I think it's 9:5 sorry if I'm wrong.
 
        
             
        
        
        
The slope is 3 y-intercept is 7 and the equation would be y=3x+7
        
                    
             
        
        
        
This would be 5x3 :) 
I did my best to keep the line dotted properly.