The length of a rectangle is l and the width of the rectangle is w. which statement explains why the perimeter of the rectangle can be found using l + w + l + w or 2l + 2w? a. the perimeter of a rectangle is the sum of the lengths of its four sides, which are each 2l and 2w. b. the perimeter of any figure with four or more sides is the sum of all of its sides or the sum of twice the lengths of opposite sides. c. the perimeter of a rectangle is the sum of all four sides of the rectangle. two sides have length l, and two sides have length w. the perimeter of a rectangle is the sum of twice l and twice w. d. the perimeter of a rectangle is the sum of its length and width.

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution