Who wants 20 what is the value of x? enter your answer in the box. x = rectangle with a hash mark on the top and bottom. the top is labeled 40, and the bottom is labeled 5 x plus 10.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

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%

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).