Answer:
The required expression is 1.5c-7
Explanation:
Here, c represents the number of carnation bushes,
Since, the number of rose bushes is 7 less than 1.5 times the number of carnation bushes,
That is, the number of roses = 1.5c - 7
Hence, the required expression that represents the number of roses is 1.5c - 7.