You buy a straddle, which means you purchase a put and a call with the same strike price. The put price is $240 and the call price is $4.50. Assume the strike price is $80. a. What are the expiration date profits to this position for stock prices of $70,$75,$80, $85, and $90 ? (Round your answer to 2 decimal places. Negative amounts should be indicated by a minus sign. Leave no cells blank - be certain to enter " 0 " wherever required. Omit the "\$" sign in your response.) b. What are the break-even stock prices? (Round your answer to 2 decimal places. Omit the "\$" sign in your response.)