Answer:

Step-by-step explanation:
In a right triangle the tangent of an angle is the ratio of the opposite length over the adjacent*. In formulas,
Solving for x, using a calculator for the tangent, 
*I promise I didn't just spellcheck that.
Answer:
the number of hours does sidney skate in all is 9.8 hours
Step-by-step explanation:
The computation of the number of hours does sidney skate in all is as follows:
= Last month + this month

= 9.8 hours
Hence, the number of hours does sidney skate in all is 9.8 hours

Applying the factorization method, for example:




Applying the factorization method:



The answer to this is letter D