Witch equation represents a linear function

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

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?