Answer:
-8b + 9 - 5k
Step-by-step explanation:
I am assuming the blue highlighted portion is your answer, and is not a part of the initial question
(-4b + 15 - 7k) - (6 + 4b - 2k)
Combine like terms
-4b - + 4b
Negative + Positive = Negative
-4b - 4b = -8b
15 - 6 = 9
-7k - - 2k
Negative + Negative = Positive
-7k + 2k = -5k
Put them all together:
0b + 9 - 5k 
Simplify 
-8b + 9 - 5k
I got the same answer as you (just in a different order)
 
        
             
        
        
        
Answer:
b, that each player loaded onto the truck is
proportional to the number of minutes. m. spent loading boxes.
• Cory loaded twice as many boxes as Alonzo.
The equation that represents the number of boxes Cory loaded is
b = 2m.
Step-by-step explanation:
hope this helps 
 
        
             
        
        
        
Answer:A
Step-by-step explanation:
it is A
 
        
                    
             
        
        
        
Find the total number of dogs by adding each day:
 Total dogs = 23
Percent of dogs: Divide the number of dogs by the total number of patients:
 = 23 / 50 = 0.46 x 100 = 46%
Use the given formula to find the standard error:
Standard error = √(0.46*(1-0.46)/50) = 0.07
90%: Find Z value for 90% ( 1.645) multiply by SE:
1.645 x 0.07 = 0.115 = 0.12
Now add and subtract that value from the Percent from above:
46 + 12 = 58%
46-12 = 34%
Answer (34%, 58%)
95%: Find Z value for 95% ( 1.96) multiply by SE:
1.96 x 0.07 = 0.137 = 0.14
Now add and subtract that value from the Percent from above:
46 + 14 = 60%
46-14 = 32%
Answer (32%, 60%)