Kathryn and dan each improved their yards by planting grass sod and shrubs. they bought their supplies from the same store. kathryn spent $146 on 14ft if grass sod and 2 shrubs. dan spent $167 on 14ft of grass and 9 shrubs. what is the cost of one ft of grass sod and the cost of one shrub

the correct answer to your question is a. 4^4

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an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.