## Elementary Algebra

We plug in the given values into $A = P(1+rt)$. Recall, r must be written as a decimal, so if we are considering 8%, r=.08. a) $A = 100(1+(.08*2)) = 116$ b) $A = 200(1+(.09*3)) = 254$ c) $A = 500(1+(.1*5)) = 750$ d) $A = 1000(1+(.1*10)) = 2000$