Answer:
The answers are A, B, C, F
Answer:
D, 10.
Step-by-step explanation:
10+8=18 4/3x18=24
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!