Divide a 5 inch line into two parts with one part 2 1/4 inches shorter than the other

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!

I’m really confused and need your assist me with this question i’ve never been taught

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer