What is (6b +4) when b is 2?

Suppose investors can earn a return of 2% per 6 months on a treasury note with 6 months remaining until maturity. the face value of the t-bill is $10,000. what price would you expect a 6-month maturity treasury bill to sell for? (round your answer to 2 decimal places. omit the "$" sign in your response.)

Can someone answer this question? : )

Give me the equations of two lines that have the same slope but are not parallel.