$1.$ List all items that were sold for at least $30\%$ more than cost in the month of December. Hint: Use function MONTH$($date$)$ to return the month$\_$# of a date.

$2.$ List the inventory category and total quantity $($by each category$)$ ordered in the year $2015($in descending order of total quantity$).$ Hint: Use the function YEAR$($date$)$ similar to MOMTH$($date$).$