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TheKoolKid1O1

1 2 and 4 are correct

hope this helps

Answer:

Option A, B and D are correct

Step-by-step explanation:

The given options are

        A) 1 x 45

        B ) 3 x 15

        C) 4 x 12

        D ) 5 x 9

Let us multiply

      A)     1 x 45 = 45 ( Correct )          

      B)     3 x 15 = 45 ( Correct )

      C)     4 x 12 = 48 ( Not correct )  

      D)     5 x 9 = 45 ( Correct )  

Option A, B and D are correct