Answer:
to show the reader how music formats have changed over time is the correct answer.
Explanation:
you didnt post a pic of the options to pick from
Original equation: 5c-4-2c+1=8c+2
The first thing you want to do is combine like terms:
3c-3=8c+2
Then. get the variable on its own side by subtracting the 3c from the left and subtracting the 2 from the right:
-5=5c
Divide both sides by 5 to get c by itself:
-1=c
Cis the answer
a isnt about guide dogs
b its just dog training nothing about service dogs
d not dogs