- In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context. Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.
- Marco Rubio (Wikipedia)
Marco Antonio Rubio (/ˈruːbioʊ/; born May 28, 1971) is an American politician and lawyer serving as the senior United States senator from Florida, a seat he has held since 2011. A member of the Republican Party, he served as Speaker of the Florida House of Representatives from 2006 to 2008. Rubio unsuccessfully sought the Republican nomination for president of the United States in 2016, but won presidential primaries in Minnesota, the District of Columbia, and Puerto Rico.