The model shows the expression 30 +12. Which expression is equivalent to thi sum?

There are many answers to this question like:

7x6

21x2

84/2

27+15

Step-by-step explanation:

If 30+12=42, all you really have to do is check each answer to see if it either adds up to 42, multiplies to get 42, divides to get 42, or subtracts to get 42.

6(5+2)

3(10+4)

Step-by-step explanation:

These are just a couple of equivalent sums, I am assuming this is a sort of short response and not a multiple choose so i believe you can use this.