I really need help like really bad

How many grams must be adde to 970g to make 1 and a half kg

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%

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)