Christina read an 80-page book in one evening. She read for 3/4 of an hour before dinner and then read the rest of the book in 1 3/4 hours after dinner. What was the average number of pages per hour that Christina read?

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!