Need Help with the table IDK what numbers shd I pick

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

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%

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?