Answer:
The answer to your problem is b because if she wants to spend 20 minutes on the piano and she has 50 minutes until dinner than she would have 30 minutes on the computer.
Step-by-step explanation:
Answer:
$2.13
Step-by-step explanation:
If she paid $25.56 for a total number of 12 gallons, then you need to divide 25.56 by 12, and you will get 2.13. Meaning each gallon cost $2.13.
You can also check your answer by multiplying 2.13 by 12.
The first equation, 2x+y-8=0 :)
