7w + 4h + 10w + 15h - 2w - 2h 
= 15w + 17h
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
One easy way to determine if a coordinate is a function or not is to look at the number in the x's place only. There should not be the same number on the x's side for a different pair.
Every pair has a different number on the x's side, which is why A is the only possible answer.
 
        
             
        
        
        
Answer:
117,000
Step-by-step explanation:
156000÷100x25
=39000
Then
156000-39000
=$117,000
 
        
             
        
        
        
Answer:
im a scorpio but my sister in law is a taurus... :)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
z≈3.16
p≈0.001 
we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level. 
Step-by-step explanation:
As a result of step 2, we can assume normal distribution for the null hypothesis
<em>step 3:</em>
z statistic is computed as follows:
z= where
 where 
- X is the proportion of correct answers in the test ( ) )
- M is the expected proportion of correct answers according to the null hypothesis (0.5)
- p is the probability of correct answer (0.5)
- N is the total number of questions in the test (40)
 z= ≈ 3.16
 ≈ 3.16
And corresponding p value for the z-statistic is p≈0.001.
Since p<0.05, we reject the null hypothesis and conclude that the student knows more than half of the answers and is not just guessing in 0.05 significance level.