PLEASE I NEED HELP QUICK!

For a read-a-thon, jay and odhràn each started reading a book at the same time and continued reading for several hours. jay's book had 278 pages, and he read 55 pages per hour. odhràn's book had 238 pages, and he read 45 pages per hour. after how many hours did they have the same number of pages left, and how many pages were left?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase