At the beginning of its fiscal year, the Town of Aarmon estimates that its revenues for street maintenance activities are $100,000, and it appropriates $90,000 for street maintenance supplies. It currently has outstanding encumbrances for street maintenance supplies of S40,000 and has incurred expenditures for street maintenance supplies of $30,000. How much does the Town of Aarmon currently have available to spend for street maintenance supplies? * ?age of three to enter at half-price. What type of fund should it use for this purpose $20,000 O $30,000 O . $40,000 O