PLEASE HELP DON'T SCROLL. ONLINE SCHOOL IS TAKING A TOLL ON ME. PLEASE HWLP ACCURATELY AND FAST THIS IS ALSO JUST PART A

What is the vertex form of f(x) = x2 + 6x + 3

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 multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false