Answer:
175 is the answer the percentage is 75
Let me use Python to find the answers
Program.

![\tt Prices=[75,120,120,145,150,150,150,175,175,200,225,275]](https://tex.z-dn.net/?f=%5Ctt%20Prices%3D%5B75%2C120%2C120%2C145%2C150%2C150%2C150%2C175%2C175%2C200%2C225%2C275%5D)



Output:;
- Mean=163.333
- Median=150.0
- Mode=150
Console attached
(b - 4z)/7 = a
b - 4z = 7a
b = 7a + 4z
Answer: b = 7a + 4z
Answer:
1/3 is the answer
Step-by-step explanation: