Can someone me? im not sure if my answers are right

What is a rational number between 9.5 and 9.7

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!

Write and solve a real word problem that involves determining distance on a coordinate plane