Answer:
X=3
y=6
Step-by-step explanation:

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If it is a square, subtract (90+ whatever the other angle is) from 360. If it is a triangle than add 90 plus whatever other number the other angle is then subtract it from 180. A triangle is 180 degrees, and a square is 360 degrees.
Answer:
Rate of change = 2 & Initial value = -1
Answer:
5m-8
Step-by-step explanation: