The circumference of a circle is C centimeters. The diameter of the circle is 9 centimeters. Which expression best represents the value of ? pi​

Choose the triangle with x equal to 17.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15