(smoke/day) A
(10 tons/day) B
(8 tons/day) C
(6 tons/day) D
(4 tons/day) E
(2 tons/day)
Cost to Acme ($/day) $750 $800 $1,000 $1,400 $2,000
Cost to FirmCo ($/day) $500 $750 $1,200 $2,200 $4,000
Suppose the firms are both currently using process A. If the government imposes a tax of
$110 per ton of smoke emitted, then Acme will use process ______, and FirmCo will use
process ______.
A. B; A
B. C; A
C. C; C
D. D; C
One thousand adults live in Milltown. Every day, they all leave work at 4:30 p.m.,
arrive home at exactly 5:00 p.m., and go to bed at 9:00 p.m. Three fundraisers, Alpha,
Beta, and Charlie, have targeted Milltown’s population. To get a donation, they must
call Milltown’s residents after they get home from work but before they go to bed.
Because the charities raising the funds are identical, the first to call a willing donor will
get the donation. Beta’s manager has decided that the best time to call is 7:00 p.m.
because it is exactly halfway between 5:00 p.m. and bedtime. Which of the following is