We have the triangle 30° - 60° - 90°.
The lenght of the sides are in proportion: 
Answer:
22
Step-by-step explanation:
The y values increase by 2 every time so 18+2=22
Answer:
4th and 5th option
Step-by-step explanation:
you can easily add eqn 1 and 2 to get rid of the y term for 4th option and get rid of x term by addition as well for the 5th option
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Answer:
0.1025641026
Step-by-step explanation:
-8/12×-2/13
=16/156
=0.1025641026
