If a takes person A 18 minutes, person B 23 minutes, and person C 35 minutes to complete the same task individually, then how long would it take if
they work together? Estimate your answer to two places after the decimal, if
necessary.

The answer would be 24mm

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.

If you have a iphone the new measure app can you with that