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!
The answer is x=6. This is because 6+4 equals 10
3+(-5)x=19
Subtract 3 from both sides of the equation.
-5x= 16
Divide by -5 on both sides
X= -3.2
Answer:
4y or 4 (divide)
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
