Yup She's 40:
http://en.wikipedia.org/wiki/Stacey_Dash
"Stacey Dash (born January 20, 1966 in The Bronx, New York) is an American film and television actress, most known as high school student Dionne Davenport in the 1995 film Clueless (even though Dash was already pushing 30 years of age when the film was released), as well as its television sequel, which ran from 1996 to 1999. She had previously played a high school student a decade earlier, in the critically acclaimed CBS drama TV 101."