Mark can produce 20 baseballs in a month and katie can produce 25 baseballs in a month. also, mark can produce 10 bats in a month and katie can produce 15 bats in a month. what is katie's opportunity cost of producing 30 bats?

50 baseballs

Explanation: Opportunity cost is the cost if the next best alternative foregone. Per unit opportunity cost is calculated by dividing the number of units lost by the number of units gained of a good.

Katie can produce 25 baseballs or 15 bats in a month. So, her opportunity cost of producing 30 bats will be 50 baseballs.

25 baseballs = 15 bats

50 baseballs = 30 bats