With all of the math questions i dont understand and there is more questions

21. Smith received 60% of the votes
       Murphy received 1/3 or 33%
      100% - (60% + 33%) = 100 - 93 = 7%so where is the other 7% of the votes. The vote total should equal 100%

22. Food : 500/2000 reduces to 1/4or 25%or 0.25
      Rent : 1200/2000 reduces to 3/5or 60% ...or 0.6
      Transportation : 300/2000 reduces to 3/20...or 15%..or 0.15

23. sum of the rows:
      Food + rent + trans = 1/4 + 3/5 + 3/20 = 5/20 + 12/20 + 3/20 = 20/20 = 1
      Food + rent + trans = 25% + 60% + 15% = 100%
      Food + rent + trans = 0.25 + 0.6 + 0.15 = 1
      The sums should all equal because the percent, decimals, and fractions are all the same, just in a different form

24. 14.5% = 0.145 = 145/1000 = 29/200
       14.5 = 14.5 = 14 1/2 = 29/2
14.5% is less then 1
14.5 is greater then 1

25. 22 + 1 2 25