Can you help me solve this

Write the fraction or mixed number and the decimal shown by the model

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!

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73