What is the mass of 1.2 x 10²⁴ atoms of C​

Which statement best paraphrase the first line in the prologue

If you want to communicate your message to the audience which two levels must you operate on at the same time

Which sentence correctly uses a colon to denote a list or enumeration? a. each group will have members fill the following roles: leader, note-taker, and time-keeper. b. our toughest monthly sales goals are in: january, july, and august. c. marketing, distribution, and customer service: are the focus areas for 2017. d. the company will be opening two new offices in: harrisburg and reading.