As a diehard Yankee fan, I don't trust Burnett and would never bet on one of his games. He's just too wild and unpredictable. In addition to that, he's not been good on the road (ERA over 5).
As far as the Reds/A's game goes, I wouldn't bet against Gio at home. He's been very tough there. If anything, I like the UNDER in that one.