<span>Because <span>t <span>is given in years and 1.08 <span>= <span>1 <span>+ <span>0.08, the annual percent increase <span>is 8%. To find the monthly percent increase that gives an 8% annual increase, <span>use the fact that t = <span><span><span><span> <span><span><span><span>and the properties of exponents to rewrite the model in a form that reveals the monthly growth rate.</span></span></span> </span></span></span></span></span></span></span></span></span></span></span></span></span></span>