**Answer:**

**Step-by-step explanation:**

Using the formula above,

slope of line

**Answer:**

The y-intercept is 4.4

**Step-by-step explanation:**

See picture below.

**Answer:**

You know 18:3 and 6:1 are equivalent ratios because if you take 18:3 and divide both sides by 3, 18/3:3/3, then you will get 6:1, which is clearly equal to 6:1.

False. x/3 represents x as the part of a whole, or x divided by 3. 1/3 x represents 1/3 of x or 1/3 times x. Hope that helps!

**Answer:**

7x+7y

**Step-by-step explanation:**

3x+3y+4y+4x

7x+7y