What is the best approximation for the area of this circle?

use 3.14 to approximate pi.

a. 12.6
b. 25.1
c. 50.2
d. 158.0

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△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 .

Which of the following describes the symmetry of the graph of y = x3?