**Answer:**

3. 120

4. 1331

**Step-by-step explanation:**

**Answer:**

What are you asking?

**Step-by-step explanation:**

The answer is d 1 1/2 of chicken for 3 salads

Because the angles are vertical angles, they are equal.

Set the equations equal to each other:

5x+100 = 3x+112

Subtract 100 from 112:

5x = 3x+12

Subtract 3x from 5x:

2x = 12

Divide 12 by 2:

x = 6

x is equal to 6