20. Mr. Santos is paid Php 164.75 per hour of work. On the first 5 days of the month, he worked for 7 hours each day. On the sixth day, he worked for only 3.5 hours. How much did he receive for the 6 days of work?
a. Php 576.625 b. Php 1,153.25 c. Php Php 5,766.27 d. Php 6,342.875