<span>Identities that come from sums, differences, multiples, and fractions of angles</span>
Hey there!
The answer to your question is 
Write the equation
Distribute -2
Combine like terms
Add 10 to both sides
Divide both sides by -11
Hope it helps and have a great day!
Answer:

Step-by-step explanation:
Total red haired students = 15+5 = 20
Boys = 15
<u><em>Fraction:</em></u>
=> 
<u><em>In simplest form:</em></u>
=> 
Sorry i can’t quite see the image can you do another one
Answer:j
Step-by-step explanation: