For this case we have an equation of the form: y = A * (b) ^ t Where, A: initial gain b: growth rate t: time Substituting values we have: y = 46000 * (1.10) ^ t For the year 7 we have: y = 46000 * (1.10) ^ 7 y = 89640.9866 Answer: her total earning at the end of 7 years are: y = 89640.9866 $