a. She worked 3 and 3/4 hours daily. That is the same as 3.75 hours.Each week has 7 days, so:3.75 hours × 7 days = 26.25 hours per week (which is 26 and 1/4 hours).b. For 3 weeks:26.25 hours × 3 weeks = 78.75 total hours workedNow multiply by ₱175.00 per hour:78.75 × 175 = ₱13,781.25Correction: the final amount should be ₱13,781.25, not ₱1,378.13.Let me know if you need more help! If this helps, feel free to mark it Brainliest