Which equation is an identity?

3w + 8 – w = 4w – 2(w – 4)

–3y + 3 = –3y – 6

9 – (2v + 3) = –2v – 6

7m – 5 = 8m + 7 – m

The length of the largest fish is 967.74 times greater than the length of the smallest fish. select a variable expression that shows the length of the largest fish, if 8 is the length of the smallest fish. a. s + 967.74 b. \[ \frac{967.74}{s} \] c. 967.74 - s d. 967. 74s

Is this a polynomial function? i need to know asap

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?