Which fraction is equivalent to $\dfrac{3}{5}$?

1. $\dfrac{5}{8}$

2. $\dfrac{6}{10}$

3. $\dfrac{9}{12}$

4. $\dfrac{12}{18}$

Which of the following is equal to 0.625?

1. $\dfrac{5}{8}$

2. $\dfrac{3}{5}$

3. $\dfrac{1}{10}$

4. $\dfrac{2}{3}$

The literal coefficient in 9y is

1. 9

2. y

3. 0

4. 1

Which of these is an example of a closed figure?

1. Open curve

2. A line

3. Rectangle

4. Ray