Recall that the compound interest formula for continuous compounding is

$(90,0\mathrm{.}2,$ t$)$

of t tell about your investment?

AP$(90,0\mathrm{.}2,$ t$)$ tells you the rate at which the accumulated amount in an account bearing $\%$ interest, compounded continuously, with a principal of $ $,$ is growing per $$1---$Select$---$decrease$$increase in the $---$Select$---$principal$$interest rate$$future value of investment $,$

years after the investment.