how long will it take to double your money at 7.5% compounded daily? and 3.62% compounded quarterly?

how long will it take to double your money at 7.5% compounded daily? and 3.62% compounded quarterly?

Let P is the principal with R as interest rate percent p.a. with compounding done M times per year.Then the amount after N years is given by,R MNA = P(1 + )IUDMTo double the money, put A=2P R...