Can someone help me with (a) i dont really care about (b)

△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 .

Rewrite the following without an exponent. (5/8)-1

To determine the number of deer in a forest a forest ranger tags 280 and releases them back