Answer:B) (3,15)
Step-by-step explanation:
Let's try rule 1.
x × 5 = y
5x = y -> 1
Now let's try rule 2.
12 + x = y
12+ x = y -> 2
Equating eqn. 1 and 2,
5x = 12 + x
4x = 12
x = 3
From eqn. 1,
5x = y
5 × 3 = y
Hence, y =15
So the final answer is B) (3,15).
