Answer:
4
Step-by-step explanation:
because y is 90 and x is 20 so z is 71
The answer is 40 you do 10 times 4 I hope it helped you you only need to multiply
Answer: 
Step-by-step explanation:
this forms a 30 degree reference angle
and this is in the 4th quadrant
When the angle is 30 degrees, the coordinates are:

It's the reflexive property because it's just relating it to itself (def. of reflexive)
As we all know: A=A, B=B, mx=mx, nothing changes.
So the answer is D