Round 55745 to the nearest thousand

△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 .

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?