1. The problem statement, all variables and given/known data Solve the compound interest formula for r by using natural logarithms. 2. Relevant equations A=P(1+r/n)nt 3. The attempt at a solution 1400 = 1000(1+r/360)(360*2) 1.4 = (1+r/360)720 ln(1.4) = 720ln((360+r)/360) I'm not sure where to go after this. Did I make a mistake?