Plz help me do this brainiest to whoever right

The answer is d, none of above hope i

8,400-6,400=xx/6,400anyways the percent increase is 31.25% or 0.3125 you can round if you can

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.