Answer: 5:7, 5 to 7, 5/7
Explanation:
Since the ratio is the number of red roses to total, you must add 5 and 2 to get the total. The ratio is 5 to 7.
These are three ways to write a ratio:
1. Using the colon symbol
5:7
2. Using the word to
5 to 7
3. As a fraction
5/7