note: i want answer of this question in 20 minutes

Question 1 Convert the following Infix expressions into Postfix. a) A$B *C-D+E/F/(G+H) b) (A+B) * C-D-E)) $ (F+G) c) A-B/(C*D $ E) d) (A+B) * (C+D-E) *F e) A+B *C+D-E*