Answer:
The answer to your question is 0.33
Step-by-step explanation:
Data
Actual length = 120 yd
Han's measure = 358 ft 10 in
Process
1.- Convert Han's measure to yards
       1 ft ---------------- 0.333 yd
      358 ft --------------  x
        x = (358 x 0.333) / 1
        x = 119.32 yd
       1 in ---------------  0.028 yd
       10 in -------------  x
       x = 0.28 ft
Total feet = 119.32 + 0.28
        = 119. 6 yd
2.- Calculate the error
% error = (119.6 - 120) / 120 x 100
% error = |-0.4|/120 x 100
% error = 0.0033 x 100
% error = 0.33
