How many bracelets with no lock can be formed from 7 different colored beads? m^ prime

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

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%

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!