Hurry! i will mark brainlest! which answer describes the simpler problems that could be used to solve this story problem? gloria used colored pieces of glass for her artwork. she used 5 pieces of red glass and 4 pieces of yellow glass. she also used 2 times as many green pieces of glass as yellow glass. how many pieces of colored glass did gloria use in her artwork? a. calculate the number of green pieces of glass. add the number of green pieces of glass to the number of red and yellow pieces of glass. b. calculate the number of green pieces of glass. subtract the number of green pieces of glass from the number of red and yellow pieces of glass. c. calculate how many more red pieces than yellow pieces of glass. add that answer to the number of yellow and green pieces of glass. d. calculate how many more red pieces than yellow pieces of glass. multiply the answer by 2. add the product to the number of red and yellow pieces of glass.

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