The diameter of a circular wheel is 26 inches. Which of the following is the closets to the area of the wheel in square inches?

A: 530.66 in
B: 81.64 in
C: 169.25 in
D: 2,122.64 in

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

What is the missing step in this proof ?