The pressure in the lungs of a student before and during the start of a volleyball match was recorded. The results are shown in Fig. 2.1. ,
(i)Use the results in Fig. 2.1 to calculate the breathing rate before the start of the match.
Express your answer to the nearest whole number.
(ii)Use the results in Fig. 2.1 to describe how the pattern of breathing during the match is
different from the pattern of breathing before the match starts.
pls answer asap