please help

You are the Dean of students at a college and the President has asked for some information about how the student body has changed over the years. You have collected the following information regarding the number of students in various categories for two different graduating classes: CHARACTERISTICS OF TWO GRADUATING CLASSES 1990 2010 Total in class 345 68? Females 178 301 Married 48 117 Humanities Majors 115 258 Going to Graduate School 78 159 Attended Commencement 99 458 Finished in 4 years 209 325 Received nancial aid 159 369 What will you say to the president when she asks: a. What percentage of the graduating class was female in 1990? 2010? b. What percentage of the glass was going to graduate school in 2010? Has this percentage gone up or down since 1990 and by how much? (Hint: Compute the percentage change to measure the amount of change between the two times} c. What proportion of the graduating class attended the commencement ceremony in 2010? Has this proportion gone up or down since 1990 and by how much? d. What proportion of the class majored in the humanities in 1990? 2010? e. What percent of students received financial aid in 1990? 2010? f. Relatively speaking, how many students finished in just four years in 1990? 2010? How has this percentage changed between the two years? Q. What proportion of students were married in 1990? 2010? h. Write a paragraph describing the changes in the graduating classes of 1990 and 2010. What changes seem especially important? Why