PEMDAS Solve the parentheses first so 9+4=13. Then do the division so 6/6=1. Now the equation is 37- 13+ 1. Then work left to right. 37-13= 24 then 24+1=25.
400x1.036 then that multiplied by 1.036 and every answer just multiply by that
Yes, I do think that inequalities or equations are used more in everyday life.