A company uses the account code 669 for maintenance expense. However, one of the company's clerks often codes maintenance expense as 996. The highest account code in the system is 750. What would be the best internal control check to build into the company's computer program to detect this error?

3. what is the output of the following statements? temporary object1; temporary object2("rectangle", 8.5, 5); temporary object3("circle", 6, 0); temporary object4("cylinder", 6, 3.5); cout < < fixed < < showpoint < < setprecision(2); object1.print(); object2.print(); object3.print(); object4.print(); object1.set("sphere", 4.5, 0); object1.print();