How should a cover letter begin? a. with an informal greeting like "hey, there! " b. with the hiring manager's name c. with the name of the position d. with "to whom it may concern"

Jack is assisting his younger sibling mary with her mathematics assignment, which includes a study of the number system. jack explains to mary that whole numbers are counting numbers that could be used to record the number of fruits in a basket. which data type represents whole numbers? a.integers.b.floating-point numbers. c.strings.d.boolean