Sophia earns straight commission selling cell phone contracts. Last month she sold 341 cell phone contracts worth a total of $38,192.00. If Sophia earns a commission of $1,909.60, what was the commission rate?

I'm terrible at math any here is appreciated.

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%

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.