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:
D ? I think
Step-by-step explanation:
Answer:
330/469x
Step-by-step explanation:
[Find the changes in the salary]
Increase = 28100 - 25300 = 2800
[the change, divided by the original amount. x100 to give the percentage]
percentage increase = 2800/25300 x 100 = 11.07%
X - the number
3x - 7 = -4 |add 7 to both sides
3x = 3 |divide both sides by 3
x = 1