Answer:
B. -1
Step-by-step explanation:
STEP 1: Simplify 3x+2(x−9).

STEP 2: Add 8x and x.

STEP 3: Move all terms containing x to the left side of the equation.

STEP 3: Move all terms not containing x to the right side of the equation.

STEP 4: Divide each term by −4 and simplify.

The problem can be represented by the the exponential growth formula which is :

Where: t ⇒ time , A ⇒ initial amount , r ⇒ rate of increase
P(t) ⇒ predicted amount at the end of t.
For the given problem:
initial amount = A = $278,640
<span>predicted increase in value per year = 4% =0.04
</span>
<span>∴ r = 1 + 0.04 = 1.04
</span>
<span>for t = 18 years
</span>
∴

<span />
Rounding to the nearest dollar ⇒ ∴ P(t) = <span>564,474
</span>
So, the predicted value of David's home in 18 years = $564,474
So, The correct option is <span>
$564,474</span>
Answer:
ok
Step-by-step explanation:
These are the steps. Just follow the numbers on the left hand side. Hopes this helps. The answer is -3.