Final answer:
The total cost to produce 7300 units is $31490. The cost of the 7301st item is $31594.30.
Step-by-step explanation:
To find the total cost to produce q units, we can use the function C(q) = 4.3q + 53000. For q = 7300, the total cost can be calculated as follows:
C(7300) = 4.3(7300) + 53000 = $31490.
To find the cost of the 7301st item, we can compute C(7301).
C(7301) = 4.3(7301) + 53000 = $31594.30.