In a circle, area and circumference can be found using the formulas A = pi r^2 and C = 2pi r, respectively. Write a formula for A in terms of
C. (Your answer should not contain r.)
Please help

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

Find the area of a parallelogram with base 15 yards and height 21 2/3

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2