A person travelled 9 hours a day what percentage of the day was spent on this journey​

It would take her 20 minutes.

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.

The answer is b 12-4m

1.4 x 10^5 have a nice day!