ANSWER ASAP THIS IS FOR MY MATH EXAM TEST

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There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Find the value of x for which line a is parallel to line b