Answer:
pages
Step-by-step explanation:
Divide the total number of pages by 5 to get how many sets of every 5 pages will contain 2/3 of a page of advertisements.

Multiply this value by
to get the total number of pages.
pages
Answer:
1600
Step-by-step explanation:
Answer:
The equation of the line is 
Step-by-step explanation:
step 1
Find the slope
The formula to calculate the slope between two points is equal to
we have
(-2,11) and (9,22)
substitute
step 2
Find the equation in slope intercept form

where
m is the slope
b is the y-intercept
we have

substitute in the equation and solve for b


Adds 2 both sides

The equation of the line is

$25 per yearbook
The cost is x and the amount is 10
So the equation is 10x=$250
Divide 250 by 10 and get 25