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:
60
Step-by-step explanation:
Since this angle is unknown, let's just represent it with the variable "x". So the supplement angle of "x" is essentially, the value of the angle that we need to add to "x" to get 180. In other words let's just say that the supplement angle is "y". This means that:
. If we subtract x from both sides we can represent "y" or the supplement angle as:
.
Since it's 660 less than 6 times it's own supplement let's first multiply the supplement by 6

Now let's subtract 660 from it, since it's 660 less

This value should be equal to the angle, which is represented as "x". So let's set it equal to x

Add 6x to both sides

Divide both sides by 7

Answer: C. 16.9
Step-by-step explanation: To find the perimeter you have to add all the sides of the figure.
Each cube has 6 sides. so if you're finding the perimeter it's 6+6+6+6+6+6= 36in. If area it's 6×6= 36in3
Answer:
6
4
Step-by-step explanation: