78÷18=4.3333333
so it's 4.33333 many pancakes with one cup 
so then you multiply 4.33333... by 12 which equals 52
So you can make 52 pancakes with 12 cups of flour 
        
             
        
        
        
The speed of the current is 7 miles per
hour.
Step-by-step explanation:
Let × represent speed of the current.
We have been given that a motorboat
maintained a constant speed of 11 miles per
hour relative to the water in going 18 miles
upstream and then returning.
The speed of motorboat while going
upstream would be 11
The speed of motorboat while going
downstream would be 11 + 2
Time
Distance
Speed
        
             
        
        
        
The correct answer is actually choice D.
        
             
        
        
        
Answer:

Step-by-step explanation:
                                                 Downtown Store   North Mall Store 
Sample size   n                             25                        20 
Sample mean  $9                        $8
                         $9                        $8 
Sample standard deviation  s       $2                        $1 




Standard error of difference of means = 
Standard error of difference of means = 
Standard error of difference of means = 
Degree of freedom = 
Degree of freedom = 
Degree of freedom =36
So, z value at 95% confidence interval and 36 degree of freedom = 2.0280
Confidence interval = 
Confidence interval = 
Confidence interval = 
Hence Option A is true 
Confidence interval is  