Answer :
The question is missing an important information. 'The bond is currently selling at an asking price of 101.25' In this part there should have been a date at which date the bond was selling at 101.25.
Nevertheless, I will provide with the calculation, if you find out the date, just plug in the value in it and you will get the answer.
The bond price mentioned is $ 101.25 percent of par, which would be $ 1012.5. Since, it is asking for price at May 1st then you know that it has been 89 days since the last semi-annual coupon was paid ( February 1st (28) + March (31) + April (30) = 89 days.
The missing date (from the question) will be divided by 89 days. The answer will be added to $1012.5.