Answer:
Linear systems are systems of equations in which the variables are never multiplied with each other but only with constants and then summed up
Answer:
y=57 degrees and x=66 degrees
Step-by-step explanation:
123+57 =180 so angle y=57 degrees
57+57=114 all triangles = 180 degrees so 180-114=66 degrees=X
I have no idea sorry I wish I could help but!♀️
Extinct species are species that do not exist anymore today whilst endangered species are species which there are few left of and the main causes are habitat destruction or are being hunted