I need help with these SQL questions. $1)--$ For each candidate, what decimal fraction of the number of positive contributions $--$ came from contributions $>$ $$2500?--$ The result should have a calculated labeled as "fraction" that is a subquery to calculate the sum of $--$ contributions over $$2500$ by candidate divided by the sum of all positive contributions for the candidate. $--$ Order by fraction in decreasing order. $--$ The result should include a row with Hillary Clinton with a fraction value $0\mathrm{.}7059482)--$ For each contributor that made more than $75$ contributions, $--$ show the contributor name, total dollar amount contributed $($use label "total"$),--$ and number of contributions $($use label "number"$).--$ Order by descreasing number. $3)--$ List the last name, zip, and number of contributors with that last name and zip. $--$ Use output labels "lastname", "zip" and "number". $--$ Only list rows where number is greater than $6.--$ Use the substring$\_$index function to extract the last name from the name column. $4)--$ Looking at only the first five digits of the zip code, show the $20--$ zip codes with the highest number of contributors $($not contributions$).--$ Show the five$-$digit form of the zip code labeled as "zip" $--$ and the number of contributors labels as "count" $--$ Order by count high to low, and then zip low to high. $--$ The first result row should be $92067,35.5)--$ What is the average number of contributions per zip code? Use only $--$ the first five digits of the zip code. Round the average to an integer and $--$ label it "average". $--$ The correct answer is $96.$ Here is the Schema db table Please give correct answers. I will give like.