If $5,000 is invested in an account at a simple annual rate of r percent, the interest is $250. When $17,000 is invested at the same interest rate, what is the interest from the investment?
Choose the most appropriate option:  A) $700  B) $750  C) $800  D) $850  E) $900
5000*r*t/100=250   rt=5   17000*5/100= 
<gadget id="calculator">17000*5/100</gadget>
<output>850</output>
850   Answer is $850
<result>D</result>
If $5,000 is invested in an account at a simple annual rate of r percent, the interest is $250. When $17,000 is invested at the same interest rate, what is the interest from the investment?