please explain where we get 17500 whats the formula

The employees of Lucid Laboratories are paid every two weeks on Friday. Total payroll is $25,000 and covers 10 workdays The end of the current month falls on the second Tuesday of the pay period. What is the adjusting jounal entry to accrue payroll at the end of the month? O A. Prepaid Salaries 7,500 Salaries Payable 7,500 OB, Salaries Expense 7,500 Salaries Payable 7,500 Salaries Expense Prepaid Salaries 17,500 7,500 Salaries Payable 25,000 Salaries Expense 17.500 17,500 Salaries Payable