The question is "What's Stella's opportunity cost of working on her serve for an hour?" The rest of the info looks like it's meant to confuse you. They charge $10 an hour. She values an hour of her time at $20. I believe that means she would pay $20. Hope this helps!
Answer:
Step-by-step explanation:
Answer:
115.08
Step-by-step explanation:
The other side is x^2+9
x^3-27/x-3= x^2+9