Isolate x.
24x = 48 - 2y
Divide by 24.
x = 2 - y/12
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>
=> 
If you want the answer youse a calculator or do 21 divided by 38
Answer: 81
Step-by-step explanation: Because, (-3)^4=-3*-3*-3*-3=-(-81)=81