A building engineer analyzes a concrete column with a circular cross section. The circumference of the column is
18
π
18π18, pi meters.
What is the area
A
AA of the cross section of the column?
Give your answer in terms of pi.

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.