Please answer the question in the screenshot and show all your work. Thank you!

BONUS. Mr. Mlachnik and Mr. Czaplewski are going skydiving. They are in a helicopter hovering at 7700 feet. Mr. Mlachnik jumps and descends for 6 seconds before opening his parachute. The helicopter then climbs to 9000 feet and hovers there. 37 seconds after Mr. Mlachnik jumped, Mr. Czaplewski jumps and descends for 11 seconds before opening his parachute. Mr. Mlachnik and Mr. Czaplewski both descend at 16 feet/second with parachutes open. Assume they fall freely (with acceleration -32 feet/second squared) before their parachutes open. At what altitude does Mr. Mlachnik's parachute open? At what altitude does Mr. Czaplewski's parachute open? Who lands first? (Hint: s = 0.5gt-.)