Chapter 6, Problem 15PS

Biology Each day, an average adult moose can process about $32$ kilograms of terrestrial vegetation (twigs and leaves) and aquatic vegetation. From this food, it needs to obtain about $1.9$ grams of sodium and $11,000$ calories of energy. Aquatic vegetation has about $0.15$ gram of sodium per kilogram and about $193$ calories of energy per kilogram, whereas terrestrial vegetation has minimal sodium and about four times as much energy as aquatic vegetation. Write and graph a system of inequalities that describes the amounts $t$ and $a$ of terrestrial and aquatic vegetation, respectively, for the daily diet of an average adult moose.