XY is tangent to circle Z at point Y. XW is tangent to circle Z at point W. If XY=12 units what is the length of the radius of circle Z to the nearest tenth of a unit?

A. 4.8 units
B. 5.0 units
C. 4.5 units
D. Not here

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=