If assets are $215,611, opening equity is $51,318, liabilities are $125,940 and income is $74,094, expenses must be:

To find the expenses, we can use the accounting equation which is:

Assets = Equity + Liabilities

First, we need to find the closing equity. We know that equity changes when there is income or expenses. So, the equation becomes:

Closing Equity = Opening Equity + Income - Expenses

We can rearrange this equation to find the expenses:

Expenses = Opening Equity + Income - Closing Equity

But we don't have the closing equity. We can find it from the accounting equation:

Closing Equity = Assets - Liabilities

So, the closing equity is $215,611 -$125,940 = $89,671

Now, we can find the expenses:

Expenses = $51,318 +$74,094 - $89,671 =$35,741

So, the expenses must be $35,741.