Ineed with number 15 fast btw my answer is not correct!

A. 1 2/3

Step-by-step explanation:

Simple. All you have to do is to multiply 10 with 1/6.

Like this.

10                         1                       10

_              x          _           =           _

1                           6                       6  

10/6 simplifies into 1 4/6.

4/6 is not the simpliest form, so divide both 4 and 6 with 2 and get 2/3.

1 + 2/3 = 1 2/3.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !