at the beginning of the day the stock market goes up 40 3/4 points and stays at this level for most of the day. at the end of the day the stock market goes down 80 1/2 points from the high at the beginning of the day. what is the total change in the stock market from the beginning of the day to the end of the day.

Your mom is a pretty lady

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.