Ten weeks of data on the Commodity Futures Index are as follows: CommodityFutures 7.35 7.40 7.55 7.56 7.60 7.52 7.52 7.70 7.62 7.55 a. Construct a time series plot. What type of pattern exists in the data

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18