Smokey is a park ranger who really enjoys the great outdoors. On his days off, Smokey hikes
over the mountain and through the woods to his grandmother’s remote backcountry cabin.
While hiking, Smokey gets hungry and thirsty, so he eats high-energy Rangerbars and drinks
the energy drink, EnerJuice. Rangerbars cost $3 per bar and EnerJuice costs $3 a bottle.
Smokey limits his hiking budget to $144 per month. Smokey obtains utility from consuming
Rangerbars and EnerJuice. His utility function is: