A share of ABC stock was worth $$60$ in 2005 and only worth $$45$ in 2010.

1. Find the multiplier and the percent decrease.

   Step 1(a):

   Create a table to help you find the multiplier.

   Step 2(a):

   Solve for $m: 60 · m^{5} = 45$

   Step (a):

   To find the percent decrease, divide the amount of the decrease by the starting value and convert to a percent.

2. Write an exponential function that models the value of the stock starting from 2005.

   Hint (b):

   Use the general form of an exponential equation: $y = a · m^{x}$, where m is the multiplier found in part (a), and $a$ is the initial value.

3. Assuming that the decline in value continues at the same rate, use your answer to (b) to predict the value in 2020.

   Answer (c):

   $$25.28$