I'm selling the xbox who wants it name the price

Last time!!!

(hurry! ) which expression is equivalent to the following complex fraction?

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Two triangles can be formed with the given information. use the law of sines to solve the triangles. b = 49°, a = 16, b = 14