Answer:
22 1/2 or 45/2
Step-by-step explanation:
Answer:the (c+4)
Step-by-step explanation:
That becomes before anything
Then number is 3 because 3 times 5 is 15 and 15 plus 2 is 17. Hope this helps.
Answer: 6
Step-by-step explanation:
Slope is found by doing:

(x1 and y1 must be from the same ordered pair and x and y must be from the same ordered pair, however point (x1,y1) and (x,y) can be used interchangeably)
Let us say that (x1,y1) is (3,18)
And (x,y) is (5,30)

Answer:
Option C. 
Step-by-step explanation:
we know that
Using a Excel tool (Correl function)
see the attached table
The r-value is 