PLZ HELP: Two senior customer service representatives (CSPs) and 8 junior CSRs work for IvyTech. Last week, the senior CSRs each helped 4 more custoomers than the average number of customers helped per junior CSR. If IvyTech's CSRs helped 138 customers last week, how many of those customers were helped by senior CSRs? A. 17 B. 26 C. 34 D. 42 PLZ EXPLAIN

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%