Patty went on a tour of an old, historic mansion. The tour started at 12:57 P. M. and finished at 1:31 P. M. How long did Patty tour the mansion?
hours
minutes

△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 .

Twelve less than a number is at most 20

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.