(13+4+6-5-3- -5) ÷5 I need this done

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Find the nonpermissible replacement for binthis expression.b2/5b +5

24m^2n+30mn^2+18mn, a sweet challenge!