Answer:

Step-by-step explanation:
we know that
The sum of the interior angles in any triangle must be equal to 180 degrees
so

substitute the given values

solve for x


Find the angle measurements



Hightest exponent is 3
cubic
C is answer
Answer:
the answer is 4,744
Step-by-step explanation:
just subtract
Y=x-4
x=y+4
y=-3(y+4)
y=-3y-12
4y=-12
y=-3
x=1
Not all info is here. what is the original cost and %off?