George read 15 pages in a book in 12 minutes. at this rate, how long will it take him to finish the book if it has 85 pages?

Step-by-step explanation:

Set up a ratio in the form of pages/minute:

then fill in next to that how many pages per minute George can read:

Now we want to figure out how long (time is our unknown, so we call that x) it will take him to read 85 pages.  The 85 goes in a ratio on the same line as the other number of pages:

Cross multiply to get 15x = 1020

Now divide both sides by 15 to get x = 68 minutes, which is an hour and 8 minutes.

what is a pre-existing condition claus?

means if you're already damaged some way when you take out a medical insurance you will not get full compensation for that injury that you already have.