TAMUBUSMATH $3\mathrm{.}4\mathrm{.}015.\frac{1}{6}$ Submissions Used

amount you invest in MarkyB Inc., to be at least the amount invested in JohnJohn Ltd$.$ and Garretts Spaghetti House combined.

annual interest earned? What is the maximum annual interest earned?

You should invest $

into MarkyB Inc., $

into JohnJohn Ltd$.,$ and $

into Garretts Spaghetti House, which will give you give you maximum annual interest $

$x.$