please answer this question. calculate call price, put price percent price down

Call Put Percent market strike Percent interest price price price question price price years up rate down 24 $25.00 $25.00 0.50 30.00% 4.00% 25 $25.00 $26.00 0.25 25.00% 4.00% 26 $25.00 $24.00 0.50 20.00% 4.00% 27 $30.00 $30.00 1.00 20.00% 4.00% 28 $30.00 $30.00 1.00 25.00% 4.00% 29. From question 27 & 28 the percent up rose by 25%, (25I20)-1, by what percent did the call price change and the put price change? 30. Stock price is $35, the years is .5, the percent up is 22%, interest rate is 3.5% The strike price is $35.71, how much are the call and put prices