3 will you please show your work Thank you!

Everrest Inc.'s stock has a 45% chance of producing a 15.50% return, a 25% chance of producing a 24.25% return, and a 30% chance of producing a -4.25% return. What is the firm's expected rate of return? Round your answer to two decimal places. For example, if your answer is $345.6671 round as 345.67 and if your answer is .05718 or 5.7182% round as 5.72. 12.47% 9.76% 11.76% 14.59% 11.64%