For each problem, use the inscribed angle theorem.
19.

20.

21.

LN is a diameter, so arc LN has measure 180º, and so

Answer: I got 2/9 but im not sure if its right
Step-by-step explanation:
Supplementary angles.
This is because supplementary angles are two angles that add up to 180 degrees, and these two angles would add up to 180 degrees.
Answer:
Rita is left with approximately 
Step-by-step explanation:
Given:
Price for trousers= 
Price for shirt = 
Price for headscarf = 
Total Money she Spent = Price for trousers + Price for shirt + Price for headscarf = 
Total Money she had before = 
∴Total Money left = Total Money she had - Total Money she spent = 
Rounding to nearest whole number ≈ 