C!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
        
             
        
        
        
-2 * 2n -2 equals -4n + 4 > 18n -3n
 
        
             
        
        
        
1) in one minute for first  wiil be 1/20 
the other 1/30, it means that  A paint in one minute  1/20 and B 1/30 then   A+B in one minute 1/20 + 1/30 = 3+2/60 = 5 / 60,  5/60 = 1/12 
if in one min they make 1/12 then  in 12  min they  paint all the wall
 
        
             
        
        
        
Let x be the mystery number
25% = 0.25
So, 24/x = 0.25 
Now, we have to rearrange the equation to get:
x = 24/0.25 = 96
Don't hesitate to ask any further questions!
Hope I helped! xx
        
                    
             
        
        
        
Answer:
a) From the chart crated with Microsoft Excel, we have that the correlation coefficient, r = √0.8581 ≈ 0.93 to the nearest hundredth
The steps used includes
1) Inputting the given data into the cells on a Microsoft Excel spread sheet
2) Highlighting and sorting the data in the cells in order of increasing Rainfall
3) Generating a dot plot using the sorted data from above
4) Adding the trend line, Square of the linear regression, and the trend line equation
5) Adding the axis labels
(b) The correlation coefficient states that there is a strong positive correlation between the monthly rainfall and and Umbrella sales
Step-by-step explanation: