What is the circumference of circle if its 6 in 3.14 or 7/22

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

What is the 12th term of b(n)=-4-2(n-1)

Use circumcenter theorem to solve for the given values