Answer:
C) 5s − 0.20s
Step-by-step explanation:
Here, s represents the cots of each snake,
Since, the cost of 5 snake = 5s,
Percentage of off = 20%,
New price of the snake = 5s - 20% of 5s




Hence, only expression '5s − 0.20s' is not equivalent to the situation stated.