C++ !I need someone to help me on question no.2 is 2!!!!! I have got answers which is not relevant or question no.1 ， please do it as soon as possible. thank a lot 　I NEED QUESTION NO.2'S CODE IN C++ DONT GIVE ME NO.1'S CODE OR MAKE NO.2'S ANSWER IN A WRONG FORM!!! 219 void function that calculates the student's final letter grade and sets theadi corresponding member variable. ibl 19dmm sdT .0 olabiv void function that calculates the student's weighted average numeric scoremember functions to retrieve the data from each of the member variables, al for the entire course and sets the corresponding member variable, and a3. Define a class called BookInfo that is an abstract data type for storing29225|Ɔ prProgramming Projectsmember functions to retrieve the data from each of the member variables, afor the entire course and sets the corresponding member variable, and aigib ansodbasamtu 00ont btov I vd jigib 2inuDefine a class called BookInfo that is an abstract data type for storinginformation about a book. Your class should have two fields of type String,xd Jigib ainuwolthe first to store the author name and the second to store the book title.Include the following member functions: a constructor to set the book title911WOand author, a second constructor which sets the book title to a parameter1in and the 9114h of the member variables to values given as an argument(s) to the function,member functions for each of the following: member functions to set each101 in Programing Project 1 and a member variable for the student's weightedthe student's final letter grade. Make all member variables private. Include1. Write a grading program for a clasthe classa. There are two quizzes, each graded on the basis of 10 points.b. There is one midterm exam and one final exam, each graded on thebasis of 100 points.C. The final exam counts for 50 percent of the grade, the midterm countsfor 25 percent, and the two quizzes together count for a total of25 percent. (Do not forget to normalize the quiz scores. They should beconverted to a percent before they are averaged in.)5.boboAny grade of 90 or more is an A, any grade of 80 or more (but lessthan 90) is a B, any grade of 70 or more (but less than 80) is a C, anygrade of 60 or more (but less than 70) is a D, and any grade below 60 is an F.ofolo01n The program i read in the student's scores anu output ne siudent'sJsdecord, wnich consists of te yuiz and two caam ecores as well as theslar st idgrade. Define and.. :he entino cou auủ ne nnai letter: Gu uciure for the student record u..classalonmasn vuui instructor if input/outnut eh.id be done with the...keybrard ad erran-wowith files, ask your instructor for instructions on file names.tol no bs bo2. Redo Programming Project 1 (or do it for the first time), but this time makesno the student record type a class type rather than a structure type. The studeno nune101 in Programing Project 1 and a member variable for the student's weightedhn blo

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