Paul plans to put concrete on a rectangular portion of his driveway. the portion is 12 feet long and six inches high. the price of concrete is $98 per cubic yard. the total cost of the concrete paul needs is $108.89. which of the following is closest to the width of the portion of the driveway on which paul plans to put concrete? [1 foot = 12 inches; 1 yard = 3 feet] (1 point) 5 feet 3 feet 10 feet 8 feet i know the answer is supposed to be 5 but i am not sure how to get to that answer. for your !

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above