An engineer is planning a new water pipe installation. The circular pipe has a diameter of d = 20 cm d=20 cmd, equals, 20, start text, space, c, m, end text. What is the area A AA of the circular cross section of this pipe? Give your answer in terms of pi

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.