The circle below is centered at the origin and has a radius of 7. What is its equation?
O A. x²-7=7
B. x2 + y2 = 49
O c. x²-7= 49
D. x2 + y2 = 7

someone helpp plsss

Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?