Answer:

x=-3.5

reason:

first, add 3 to both sides

this makes the equation -1/2x=7

then, divide both sides by -1/2

this will give you x=-3.5

**Answer:**

5 years=$10

**Step-by-step explanation:**

count by 5's

Answer:

a = l²

v = s³

Step-by-step explanation:

The area of a rectangle is the product of its length and width. When that rectangle is a square, the length and width are the same. Here, they are given as "l". Then the area of the square is ...

a = l·l = l²

__

The volume of a cuboid is the product of its height and the area of its base. A cube of edge length s has a square base of side length s and a height of s. Then its volume will be ...

v = s·(s²) = s³

The two equations you want are ...

• a = l²

• v = s³

**Answer:**

-1

**Step-by-step explanation:**

The given equation has a y-intercept of 8, so goes through the point (0, 8).

If the line also goes through the point (2, 6) it has a slope of ...

(y2 -y1)/(x2 -x1) = (6 -8)/(2 -0) = -2/2 = -1

**The slope of the line is -1**.

_____

The value of A is -2.

**Answer:**

**Step-by-step explanation: 85 students and 80 adults **