ok, the question was "is the following ratios equivalent?" the ratios are 3:5 and 5:7. my answer is "no". is that right?

you are correct. The way to know is divide the 3 by 5 and the 5 by 7 If the numbers are different, the ratios are not equal. Get it?

Write 3 equivalent ratios to 5/4

your correct u need to divide 3 by 5 and divide 5 by 7 if the awensers u get after dividing are diffrent then the ratios are diffrent

3 sailboats to 6 fan boats would the answer be "no"

Yes, you are correct. To determine if the ratios 3:5 and 5:7 are equivalent, we need to divide the first number of each ratio by the second number.

For the ratio 3:5, we divide 3 by 5, which gives us 0.6.
For the ratio 5:7, we divide 5 by 7, which gives us approximately 0.714.

Since the resulting decimal values are different (0.6 and 0.714), we can conclude that the ratios 3:5 and 5:7 are not equivalent.