3.4 on Edhesive and I can’t figure this question out on the quiz

Rafael needs to add a title row to a table that he has inserted in word. what should he do? use the alignment options. use the merge and center option for all the cells in the top row. use the merge and center option on the first two cells in the top row. none of the above

Verify each identity[tex] \frac{csc}{cot \: x \: + \: tan \: x} = cos \: x[/tex]

Which of the following is an example of synchronous communication? a) e-mail b) voicemail c) telephone conversation d) text message.