Answer:
The answer is 55 6/9, but when simplified, it is 55 1/3
 
        
             
        
        
        
2x-7=29
"Seven less than" => minus 7.
"Two times <u>a number</u>" => 2x (x is the unknown number)
"is twenty-nine" => =29
Putting it all together, 
-7 + 2x = 29
or
2x-7=29
(if you were wondering x is equal to 18)
        
             
        
        
        
Answer:
Average rate of  change for the function for the interval (6, 12] is 500 people per year. 
Option A is correct.
Step-by-step explanation:
We need to find the average rate of  change for the function for the interval 
(6, 12]
The formula used to calculate Average rate of change is: 

We are given a=6 and b=12
Looking at the graph we can see that when x=6 y= 3000 so, f(a)=3000
and when x=12, y=6000 so, f(b)=6000
Putting values in formula and finding Average rate of change:

So, average rate of  change for the function for the interval (6, 12] is 500 people per year. 
Option A is correct.
 
        
             
        
        
        
Step-by-step explanation:
b=a-80
c=b-61
c=a-141
a+b+c=3a-221=430
3a=651
a=217 & b =137 & c=76
 
        
             
        
        
        
Answer:
A. 144 degrees
B. 51 degrees
Step-by-step explanation:
38*3+30
114+30=144
39 + x = 90
x = 51