3 is what percent of 75?

4%

Step-by-step explanation:

First, we turn this into a fraction:

3/75 = 1/25 = 4%

So 3 is 4% of 75

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80