WeHaul Trucking is planning its truck purchases for the coming
year. It allocated $600,000 for the purchase of additional trucks,
of which three sizes are available. A large truck costs $150,000
and will return the equivalent of $15,000 per year to profit. A
medium-sized truck costs $90,000 and will return the equivalent of
$12,000 per year. A small truck costs $50,000 and will return the
equivalent of $9,000 per year. WeHaul has maintenance capacity to
service either four large trucks,...