Answer:
DeShawn not take offer engine detailing service
Step-by-step explanation:
given data
cost = $40
charges = $75
total price = $90
additional charges = $20
to find out
Should DeShawn continue offer
solution
we know here De shawn marginal benefit is
marginal benefit = total price - charges
marginal benefit = 90 - 75
marginal benefit = $15
and
we have given additional charges is $20
so
we see marginal cost here less than the marginal revenue
so DeShawn not take offer engine detailing service