Answer:
Predicted final score of Josh 
Step-by-step explanation:
The linear regression relationship has been established between the final-exam score and  the score on the first test
The relation ship is represented by a linear equation - 

Where 
 score on the first test
 score on the first test
 final-exam score
 final-exam score
Substituting the value of  in above equation we will get -
 in above equation we will get -

Predicted final score of Josh 
 
        
             
        
        
        
2 hours she earns €16
3 hours she earns €24
        
                    
             
        
        
        
Answer:
a = 
b = 12
 c = 
Step-by-step explanation:
Since the triangles are right triangles with 60 and 45 degree angles, their side lengths follow special triangles.
A 45-45-90 right triangle has side lengths  .
.
A 30-60-90 right triangle has side lengths  .
.
Starting with the top triangle which has a 60 degree angle, its side length 6 corresponds to a side length of 1 in the special triangle. It is 6 times bigger so its remaining sides will be 6 times bigger too.
Side a corresponds to side length  . Therefore,
. Therefore,  .
.
Side b corresponds to side length 2, b = 2*6 = 12.
The bottom triangle has a 45 degree angle, its side length b= 12 corresponds to  . This means
. This means  was multiplied by
 was multiplied by  . This means that side c is
. This means that side c is  .
.
 
        
                    
             
        
        
        
Answer: 6247.5
Step-by-step explanation:
85% x 105000 = 89250
70 x 89.25 = 6247.5