数学gwd的题

andreamigo

求指教，有两道题
1、In 1994, Kenneth’s annual salary was 30 percent higher than it was in 1993.  In 1995, Kenneth’s annual salary was reduced to 104 percent of his 1993 annual salary.  Kenneth’s 1995 annual salary was what percent less than his 1994 annual salary?
2、An equilateral triangle that has an area of 9  is inscribed in a circle.  What is the area of the circle?
谢谢各位啦

treewing929

第一條是 20%??!!!