Excel can calculate a break-even point for a product, a branch office, a division, or an entire company

Which of the following would be considered a mechanical calculator?

A. Schickard's Calculator B. Pascaline C. Thomas de Colmar's Arithmometer D. All of the above

Assume that each of the following statements applies to the same program.

a) Write a statement that opens file oldmast.txt for input; use an ifstream object called inOldMaster. b) Write a statement that opens file trans.txt for input; use an ifstream object called inTransaction. c) Write a statement that opens file newmast.txt for output (and creation); use ofstream object outNewMaster. d) Write a statement that reads a record from the file oldmast.txt. The record consists of integer accountNumber, string name and floating-point currentBalance; use ifstream object inOldMaster. e) Write a statement that reads a record from the file trans.txt. The record consists of integer accountNum and floating-point dollarAmount; use ifstream object inTransaction. f) Write a statement that writes a record to the file newmast.txt. The record consists of integer accountNum, string name, and floating-point currentBalance; use ofstream object outNewMaster.