Which of the following don't have any solutions? A)

15x-45=75x+7515x−45=75x+7515
B

15x-45=15x+7515x−45=15x+7515,

C

-45x-45=-75x+75−45x−45=−75x+

D

45x-45=-15x+7545x−45=−15x+75

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.

(60 points) explain this in detail

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 2x^2 = 4x 2) 8 +2x = 2(4x) 3) 2 * 2 = 4 * 2 4) 4x^2 -2x = 0