Answer:

Step-by-step explanation:
By the tangent ratio,
. Substituting the given values into this equation gives us:
° 
°
(Multiply both sides of the equation by
)
(Divide both sides of the equation by
)

Hope this helps!
Answer:
5x - 30
Step-by-step explanation:
I used the distributive property and I think I got it.
Round trip is going there and back so it is 2*(6 7/10)=12 14/10=13 4/10=14 2/5