Joyce and Felix tested their reaction times. Each person pressed a button as soon as a light turns on. They compared their reaction times with the average, represented by the zero mark on the number line.

Joyce's reaction time was 0.1 seconds below the average reaction time. The difference between Joyce's reaction time and Felix's reaction time was 0.3 seconds.

Plot all of the points on the number line that could represent Felix's reaction time as compared to the average.
-0.5, -0.4, -0.3, -0.2, -0.1, 0.0, 0.1, 0.2, 0.3, 0.4

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

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

Which number line correctly shows 0.8 + 0.3?