if Santa increased his deliveries from 27 percent to 33 percent in 1999, and then to 39 percent in 2000, and this same pattern c
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If 2x+7>=0, x>=-3.5 then |2x+7|=2x+7.
Then the inequality becomes:
2x+7>23, 2x>16, x>8.(which is an acceptable result since we already assumed x>=-3.5)
If 2x+7<0, x<-3.5 then |2x+7|= -(2x+7).
Then the inequality becomes:
-(2x+7)>23, 2x+7<-23, 2x <-30, x<-15.
(which is an acceptable result since we already assumed x<-3.5)
Thus the answer is x<-15 or x>8.
The graph is simple. You draw the line of real numbers and "shadow" all numbers above 8 and all numbers bellow - 15.
The standard form for a circle is 
. We have our h and k, and we also have x and y. So let's fill in accordingly and solve for the radius squared term. 
. Simplifying we get 
or 25. Now let's rewrite the equation with the radius term: 