PLEASE HELP.. THIS IS DUE TONIGHT I WILL MARK BRAINIEST

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 of these phrases uses parallelism to create a sad tone?

How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?