Question: Write correct R code ( with pipe operator ) in order to join 2 dataframe called students and grades by variable student _ id .

Write correct R code (with pipe operator) in order to join 2 dataframe called "students" and "grades" by variable student_id. Then select only grades for student_id 50 and 75. Then combine variables course_id and course_title into the variable course. Then select only columns student_id, course, grade.

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