There are two chances to take home a jackpot of more than $300 million in this weekend’s Powerball and Mega Millions drawings.Friday’s Mega Millions jackpot stands at a $310 million annuity that is worth $238 million in cash. Saturday’s Powerball jackpot offers a $304 million annuity that is worth $236 million in cash. Jackpots in both games have been growing since September.Both games offer other