Find the unit rate. 1. 140 students in 4 buses

2. 605 miles in 5 hours

3. 312 pages in 4 hours

4. 54 seats in 2 rows

5. 1023 miles in 3 hours 6. 544 pages in 4 days

Please help will mark brainiest!

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%

Math it's appreciated. (picture provided)

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints