Answer:
x=4 and y=4
Step-by-step explanation:
From first function we have:

And from the second one:

Substitute them:

Answer:
x = 15
Step-by-step explanation:
We know that 4x° + 8x° make a straight angle of 180°.
4x° + 8x° = 180°
12x° = 180°
12x = 180
x = 180/12 = 15
Answer (C) 50 degrees
Steps: please check the attached image for details
B) If y is the additive identity is 0
Answer:
5 divided by 100
Step-by-step explanation
5 divided by 100 is 0.05 but as a fraction, it's 1/20