She can buy 7 bags of candy because 7 / 1 = <<7/1=7>>7
She can buy 5 bags of chips because 7 / 1.4 = <<7/1.4=5>>5.
She gets 84 ounces of candy because 7 x 12 = <<7*12=84>>84
She gets 85 ounces of chips because 5 x 17 = <<5*17=85>>85
The gets 85 ounces in food because 85 > 84
#### 85