Abag contains 13 pens and 18 pencils. what is the ratio of pens to pencils?

a. 31 to 13
b. 18 to 13
c. 13 to 31
d. 13 to 18

Someone . me. compound probability

Which of these triangle pairs can be mapped to each other using two reflections?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%