Accounting profit will be $90,000.
Explanation
All of her costs will be added together which will give a profit amount.
First of all,
$25,000 of office renting equipment
Then $18,000 each on hiring students
This makes $36,000.
In addition, she rents office space for $9000 and other variable costs are of $40,000.
These costs accumulated makes $110,000.
These costs of $110,000 will be deducted from her Revenue of $200,000
Thereby, her business is left with $90,000 accounting profit.
Economic profit is $87,060.
Explanation
By adding all the cost of her business which includes office rent equipment, employing students, office rental space for working, and the variable cost of the office while it is in use of the works. After deducting the revenue from the total cost
Her economic profit will be $90,000
($42,000 x 7%) which is $87,060.
Hence, her economic profit is $87,060.