Standard form (1.5*10^-3) * (2*10^4)

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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!

Someone me i need with this stuff