
Step-by-step explanation:
Step 1:
Let us consider the given expression 
On Right Hand Side of equation,

Using BODMAS rule, we could get 2.4 as value.
Step 2:
Now let us consider the Left Hand Side of equation and solve it
which will be equal to 2.4.
You subtract the known angle measurements from 180 because a straight line means the whole undivided angle is 180 degrees and the answer to the subtraction is your missing angle measurement
I hope this helps!!!
Answer:
x= 3.5 y=1.5
Step-by-step explanation:
plug in answers to check
Answer: Dont come after me if im wrong buut, what i think you mean is reflecting a point over the y axis would mean the y stays the same, but x changes to be negative or positive depending on its quadrant.
Step-by-step explanation:
point: (8,5) reflected over axis= (-8,5)
.(-8,5) | (8,5)
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____________________(x)
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|(y)
I wish I could help you but I’m not smart enough so I hope someone comes around and lends you a hand. Good luck!