Please help thank you!

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288

Afarmer has 5 times as many cows as pigs. the farmer only has cows and pigs, and he has 168 animals. how many cows does he have?