See photo for solution and mark me as brainliest if you think i helped!
 
        
        
        
Answer:
acute
right angle or obtuse 
obtuse 
Step-by-step explanation:
those are the answers
 
        
             
        
        
        
Given:
The equations are


To find:
Which function is changing more quickly.
Solution:
The slope intercept form of a line is

Where m is slope and b is y-intercept.
On comparing  with the slope intercept form, we get
 with the slope intercept form, we get



On comparing  with the slope intercept form, we get
 with the slope intercept form, we get


Since,  , it means the absolute rate of change of second function is greater than the first function.
, it means the absolute rate of change of second function is greater than the first function.
Therefore, the second function is changing more quickly.
 
        
             
        
        
        
This is exponential decay which can be expressed as:
y=ab^t, y=final value, a=initial value, b=rate, t=time
In this case a=25000, r=(100-20)/100=0.8 so
y=25000(0.8^t), so in 4.5 years...
y=25000(0.8^4.5)
y≈$9158.93  (to nearest cent)
        
                    
             
        
        
        
Answer:
1. 15
2. 27
3. 4
4. 72
5. 2
6. 9
7. 1
Step-by-step explanation: