\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Sarah invested \(\dollar 300\) in a variable rate investment account for 10 years. The interest rates were:
  • for the first seven years: \(4\pourcent\) compounded monthly.
  • for the last three years: \(3\pourcent\) compounded monthly.
  • Find the final amount after 7 years.
    dollars (round to the nearest integer)
  • Find the final amount after 10 years.
    dollars (round to the nearest integer)