i need help for somw Qestions please

Jun 10, 2007
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hi everone,,,
i need help in this qustion please:

1. write a program that accepts three student name, and thier corresponding marks in c++, java and visual basic and then display the tatal and the average of all the three students using classes and objects.
2. how does the property of the following two derived classes differ?
- class D1:private B {//...}
- class D2:public B {//...}
3. write a program to evaluate the following investemnt eqaution: V=p(1+r)^n
and print the value of V for the combination of : n=1,2,3,4....10
4. write a program which will ask the user three employee names and thier corresponding salaries using array of objects


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