Answer: Hello!
Ok, each gizmo cost $71 in materials and $20 in labor, then each one costs $71 + $20 = $91 in total.
We also know that the space is rented for $5000, and this is independent of the number of gizmos produced.
Now, we want to know the cost if the company makes 310 gizmos, this is the cost of the rent plus the cost for each gizmo, then:
$5000 + 310*($91) = $33210
