Question

12(43)

Answer 1

12(43)=516
5(88)=440
8(63)=504
7(28)=196

Answer 2

I’m not entirely sure how to answer this without a word problem, but from what I see, all you have to do is multiply the two numbers.
12 x 43= 516
5 x 88 = 440
8x 63= 504
7 x 28= 196
Usually, when you see a number followed by another number in parentheses, like here, that means to multiply.