Answer:
I don't see question 18?
Step-by-step explanation:
For number 22: Â 0.2(x+50)-6=0.4(3x+20)
              0.2x +10-6=1.2x+8
              -0.2x      -0.2x
 -----------------------------------------------------------
                   10-6=1x+8
                    +6    +6
----------------------------------------------------------------
                     10=7+8
                     -7  -7
----------------------------------------------------------------
                      3=8
For number 24: Â I do not know honestly, I am sorry:'(
For number 25 I think that A=true,B=false, and C=false