This isn’t 30 points this is 15
        
             
        
        
        
Answer:
Best predicted value of y' = 86.16 kg
Step-by-step explanation:
Given, 
n = 100
Range of heights = 138 - 190cm
Range of weight = 39 to 150 kg
x' =167.46 cm
y' = 81.44 kg
r = 0.108
p value = 0.285
y = - 105 + 1.08x
Significance level = 0.05
We reject H0 since pvalue, 0.285 is less than significance level of 0.05.
Therefore, 
Given height of adult male, x = 177 cm
y = - 105 + 1.08x
The best predicted value of y' =
y' = - 105 + 1.08(177)
y' = 86.16 kg
The best predicted value of y' is 86.16kg
 
        
             
        
        
        
Parking charges for first 2hours =$5 per hour after 2 hours parking charges = $2.50per hour
        
                    
             
        
        
        
25. You have to do 65x65-(60x60) and the square root it
        
                    
             
        
        
        
Answer is : 8v^3+ 14v^2+11v+3 
For cubic feet
Solution 
Formula : volume base area x height 
So base area = 4v^2 +5v+3 
Height = 2v+1 
So multiply 
Volume =(4v^2+5v+3) x(2v+ 1)
The rest is below