Read the spreadsheet formula below, then answer the question. =sum(c6: c9) what does the : symbol in the formula do? arranges the formula in the correct order of operations selects all of the cells in the range c6 to c9 designates cell c6 as the last cell in the formula triggers the use of the input line to check work

Type the correct answer in the box. spell all words correctly. under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Dameas communication challenge is due to which factor

Perform the following tasks: a. create a class named testclass that holds a single private integer field and a public constructor. the only statement in the constructor is one that displays the message “constructing”. write a main()function that instantiates one object of the testclass. save the file as testclass.cpp in the chapter 08 folder. run the program and observe the results. b. write another main()function that instantiates an array of 10 testclass objects. save the file as test class array.c . run this program and observe the results.