Hurry please.

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 shows one way to determine the facts of x3+4x2+5x+20 by grouping

What are the zeros of f(x)=x^2+3x-10