Need help with this question

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then