Zachary drank 2/3 liter of water Monday before going jogging. He drank 3/7 liter of water after his jog. How much water did Zachary drink altogether? Write your answer as a mixed number. »

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.