Answer
The amount of the investment is $150,000.
Work Step by Step
The part is 12,750. The percnt is 8.5%. The whole is unknown.
$\frac{12750}{x} = \frac{8.5}{100}$
$8.5x = 12750\times100$
$\frac{8.5x}{8.5} = \frac{1275000}{8.5}$
$x = $150000$