please show formula dont use excel

Question 29 ( 1 point) A home buyer buys a house for $225,000. She pays 20% cash, and takes a fixed-rate mortgage for the remaining over ten years at a quoted APR of 6.26% with semi-annual compounding. If she makes biweekly payments at the end of each period, which of the following is closest to each of her payments? Assume 26 biweekly periods per year. $1,165.07$1,160.76$937.50$928.56$915.08