Front end estimation for this question would be to the nearest hundred. So 125 rounded to the nearest hundred is 100, 123 to the nearest hundred is 100, 392 to the nearest hundred is 400, and 294 to the nearest hundred is 300. Adding 100 + 100 + 400 + 300 would be 900.
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Hope this helps!
Mean is when you add all of them together and divide by the amount of data you collected. Mean is considered the average. So, all of them added together would be 14. Divide that by 7. You should get 2 and that is the average.
Answer:

Step-by-step explanation:
Given


Required
Find one possible value of x
From the given parameters;
is a possible solution of
where y= 7
Substitute 7 for y

Add 3 to both sides


Divide both sides by 2


The result of the inequality implies that x is less than 5; So, the possible values of x is all real numbers less than 5;
Having said that;
is one possible coordinate of 
Answer:
= a(b+c)
Step-by-step explanation:
you can factorize out the a