A warm up consist of a period of non-strenuous activity that slowly prepares the body for more vigorous exercise.
Most warm up will gradually increase in intensity. The muscle which was used can be different for each activity. <span>Not only athlete, </span>singer can do warm up too.
Your answer would be A: 24
because 20% of 30 is 6 and because he wants to decrease it by 20% (or 6) it would make your answer 24.
20% into a decimal is .20
.20 divided by 30=6
