Answer:
The company should provide, in average, 90 jobs per month in order to break even.
Step-by-step explanation:
We will assume that the variable costs are proportional to the quantity and thus VC=a*Q
the profit obtained is
profit = P*Q , (Price [$/job] * Jobs sold [jobs])
and the total costs are
total costs= FC+VC = FC + a*Q , FC=fixed costs
in order to break even the quantity sold should be enough to cover all costs, therefore
profit = total costs
P*Q = FC + a*Q → Q= FC/(P-a)
thus
Q= FC/(P-a) = $3240 / ($60/job - $24/job) = 90 jobs