12
b ./
40
40
Half is the same thing as .5 so you divide 30 by .5 and you get 60 then you add 10 so it is 70. TADA!!!
40
12.5? or "what". Did you mean "Divide thirty by half and add ten?"? Then the answer would be seventy.
30/0.5=60 60+10=70
40
40
30 divided by .5 plus 10 equals 70 70
The answer is 70 (30 / 0.5 = 60, 60 + 10 = 70)