So basically just do 112 divided by 4 to find the length of each side. Then from there minus that one side by 4 to get what you need x to be to be the length of the one side. One side is 28. Also...
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Lets get all the information we need first. A week has 7 days, you practice 30 min each day, so in a week you will practice a total time t of 30 min for 7 times, that is: t = 7day(30 min/day) t = 210 min So in a week you will practice a total of 210 minutes.
