Me i'm really confused. i will award

and

Step-by-step explanation:

Givens:

, by given.

Now, , by defintion of straight lines and supplementary angles.

Then, we solve for

Now,

, by vertical angles definiton.

Then,

, by defintion of straight lines and supplementary angles.

Then, we solve for

Therefore, the solutions are and

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.