**Answer:**

20

**Step-by-step explanation:**

-1.1. You have to add -2.5 and -3 which gives you -5.5. When you divide -5.5 over 5 that gives you -1.1.

**Answer:**

$17.50

**Step-by-step explanation:**

$18.37=x+5%

18.37=1.05x

18.37/1.05=x

x=$17.50

**Answer:**

**Step-by-step explanation:**

The equation of a line passing through two given points (x1,y1) and (x2,y2) is given by:

In this case, x1=-8,y1=8,x2=1,y2=-10

Substituting these values in the equation:

Simplifying,

=>

=>

=>

=>

The expression:

3 (x - 2)

indicates that the number 3 before the parenthesis is multiplying the expression inside the parenthesis.

Then in order to do such we use what is called the distributive property which tells us to "distrubute" suche multiplication among the two term that are in the parenthesis:

3 x - 3 * 2

3 x - 6

Which is the first option in your answer list.