Id say d is best way to go
Answer:
42.3°
Step-by-step explanation:
Use SOH-CAH-TOA (O=opposite, A=adjacent, H=hypotenuse) we see that they give us the angle missing, x, but we first need to identify what method to use. They give us the opposite side from the angle, and they also give us the adjacent side from the angle, so TOA=tan.
now plug it in, since there is no angle then we plug it in as 
in the calculator, (be sure to be in degree mode)
x= 42.3°
(does that make sense)
Solve 5+8 and get 13(3+x) then muliply 13×3 and 13×X... you will end up with 39+13x
The correct answer is: [A]: "the number line in the upper, left-hand corner" .
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