2cos theta = sec theta.. what are they asking me to find?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

40 describe the outliers from the scatter plot.

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36