Simplify the following.
25+15-0×22×15of17÷20+6-2¯
25+15-0×22×15of17÷20+6-2¯=25+15-0×22×255÷20+4=25+15-0×22×22520+4=25+15-0+4=40+4=44
Hence, the required answer is 44.