Answer:
Tax 3.78 $ and tip 7.56 $
Step-by-step explanation:
42*0.09 = 3.78
42*0.18 = 7.56
 
        
             
        
        
        
Answer:
The answer is B, i believe 
Step-by-step explanation:
House flipping is usually when you buy s house and renovate it to make it look nicer and then selling it for more to make a profit from that.
 
        
             
        
        
        
Answer:
the middle 50% of most lengths of pregnancies ranges between  255.62 days and 274.38 days
Step-by-step explanation:
Given that :
Mean  = 265
standard deviation = 14
The formula for calculating the z score is 
x = μ + σz
At middle of 50% i.e 0.50
The critical value for 
From standard normal table
 + 0.67  or -0.67
 + 0.67  or -0.67   
So; when z = -0.67
x = μ + σz
x = 265 + 14(-0.67)
x = 265 -9.38
x = 255.62
when z = +0.67
x = μ + σz
x = 265 + 14 (0.67)
x = 265 + 9.38 
x = 274.38
the middle 50% of most lengths of pregnancies ranges between  255.62 days and 274.38 days
 
        
             
        
        
        
170 cm. The unknown length on the left is 21 cm
        
             
        
        
        
Step-by-step explanation:
ah, here you go.
come on, now. you know this now ...
again, mutually exclusive attributes in the table (no overlap here) allow us to add the numbers for a total :
4+2+12+10 = 28 students in total. 
how many of those 28 fulfill our desired criteria (has a brother) ?
well, it is the sum of the column "has a brother", as it does not matter, if there is also a sister or not.
so, it is 4 + 12 = 16
therefore, the probability to pick a student randomly, who has a brother is
16/28 = 4/7 = 0.571428571...