Atrapezoid has a perimeter of 117cm. the two shortest sides have the same length. the third side is 12 cm longer than one short side. the final side is 9cm less than three times one short side. how long is each side of the trapezoid? pls pls i need an answer, i have to finish this in 15 mins, this is really hard and i will give you 30 points : )

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307