Answer:
The answer to the question provided is 14.4 ft.
Step-by-step explanation:
We can solve this using proportion!

In order to find who has read more pages, let's find the number of pages read by each one.
The number of pages read by Clancey is:

The number of pages read by Ethan is:

So Ethan read more pages.
The combined number of pages in both books is 240 + 170 = 410.
The combined number of pages read is 60 + 68 = 128
So the fraction is:
5x-7y=14
-5x -5x
^
Subtract 5x from both sides
-7y=-5x+14
Divide by -7 by all of the numbers
y=-5/7x-2
Domain:
-4 ≤ x ≤ 3
or in different form:
x ∈ [-4; 3]