I’m not positive about this but I believe 6
Answer:
a ∈ ℝ
Step-by-step explanation:
The statement is true for any value of a
since both members are identical
Answer:
B. 
Step-by-step explanation:

The transformations are:
Reflected upon the x axis (x is now negative):

Moved 4 units to the right (instead of just the variable x, you have (x-4)):

And finally moved 3 units down (so now it's minus 3):

Hope this helps! :]
a triangle needs to have 180 degrees in all.
65 + 65 = 130
180 - 130 = 50
x = 50 degrees