What is the beta of a portfolio with E( rp) = 18 percent, if rf = 6

Question:

What is the beta of a portfolio with E( rp) = 18 percent, if rf = 6 percent and E( rM) =14 percent?

Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...