Use the number 913256 write the value of the 9 digit

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 are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Solve the system of equations y= 3/2 - 1, -x+ y =-3