A store is having a sale. The sale is buy one sweat shirt, get the second sweat shirt for 30% off. The price of the discounted sweat shirt is $28
During the first hour of the sale, the store had $748 in sweat shirt sales.
How many sweat shirts were sold in the first hour?
The sweatshirts were sold in pairs, with the pair price being $28 / 0.3 = $<<28/0.3=93.33333333333333>>93.33
The total number of pairs sold in the first hour is $748 / $93.33 = <<748/93.33333333333333=8.010121457489879>>8.01
Since sweatshirts are sold in pairs, 8 pairs were sold in the first hour.
So, 8 * 2 = <<8*2=16>>16 sweatshirts were sold in the first hour. Answer: \boxed{16}.