A combined $1.5 billion is on the line in this week’s Mega Millions and Powerball drawings.WYFF News 4 caught up with a Simpsonville gas station that knows a thing or two about selling a ticket worth that much. KC Mart No. 7 is the location where the winning Mega Millions ticket worth $1.5 billion was sold in 2018.”It was quite the whirlwind,” said KC Mart