What is the length of cf? look at image attached

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Me with this one question, and i'll upvote the brainliest answer