7. There are approximately 1.2 * 108 households in the U. S. If the average household uses 400
gallons of water each day, what is the total
number of gallons of water used by households
in the U. S. each day?

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%