hi please help im so confused, i'm doing an escape room, i have no clue what this means. here is the question also: "Solve for the values of E, F, G, and H, and then input the secret number to unlock this door!"

On her first stroke, maya hit a golf ball 146 yards, 2 feet, 11 inches. on her second stroke, she hit it 163 yards, 1 foot, 2 inches. how far did the ball go all together? convert the answer to larger units whenever possible.