Respuesta :

Answer:

b

c

a

d

Step-by-step explanation:

sum=addition

difference=subtraction

groups=hints multiplication

split into=division

Answer:

  • sum of no and 12 is 12+x
  • difference b/w 12 and a no is 12-x
  • 12 groups of some no is 12x
  • some no of people split into 12 rows is x/12

Hope this helps!