### Home > CCA > Chapter 6 > Lesson 6.1.4 > Problem6-44

6-44.

The cost of a $55$ inch HDTV is decreasing $15\%$ per year.

1. What is the multiplier?

If the cost decreased by $15\%$ each year, the newcost would be $85\%$ of the previous year.

$0.85$

2. If the current cost of the HDTV is $1500$, what will it cost in four years?

In one year the cost will be $1500\left(0.85\right)$.
In two years the cost will be $1500\left(0.85\right)]\left(0.85\right)$.
Continue this pattern.

3. If the current cost of the HDTV is $1500$, write an equation for the cost in $n$ years.

Use the pattern in part (b) to write your equation.