answer
z = 100
opposite angles
when inscribed in a circle, the opposite angles of a quadrilateral add up to 180
so z + 80 = 180 and y + 120 = 180
solve for z
z + 80 = 180
z = 180 - 80
z = 100
To compare ratios, write them as fractions. The ratios are equal if they are equal when written as fractions.
Answer:
-4
Step-by-step explanation:

Hope this helps!
Answer:
Step-by-step explanation:
Distributive property: a(b + c) = a*b +a*c
