Consider: (a) Stock trades for $100; (b) Calls with exercise prices of $90,$100, and $110 trade at prices of $16.49,$11.79, and $6.52 respectively. If a person buys a $90 call and writes a $110 call, at what final price will she break even? Please answer correctly up to two decimal places. 99.97 margin of error +/0.01