Anyone know the answer?

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!

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i