Please help me
HARD QUESTIONs​

Guys i really need or i have to stay late up night

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 roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?