What does arrivederci means in english who keeps deleting my question like it my question deal with it

In "all together now," jordan states that there were marches and protests against segregation and discrimination in the 1960s. what makes this statement a fact? a. it was stated in a persuasive essay. b. it is an emotional statement. c. it can be proven in an encyclopedia. d. it reveals the author's personal judgment.

Which type of irb review does not require an irb approval but does require a determination by the irb or an irb designee?

Does any one here play destiny 2? so that this question doesnt get deleted oo, what is pi r ^2 of the circumference 0of 5