Richard gets his hair cut every 3 weeks. his hairdresser charges him $25
each time. a reasonable tip is 10%. richard pays him $28 each time. what
percent, to the nearest whole does richard tip his hairdresser?
a. 3%
b. 9%
c. 10%
d. 12%

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%

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

If the value of cos330°is√3/2 then find cos 165°.