It's a 50/50 shot that the chicks inheriting the gene for colored eggs. And they would most likely be barred. Any chicks that don't develop barring are pullets for certain.
The pea combs and fluffy cheeks indicate Easter Egger.
Most hatchery sourced Easter Eggers are not 'mixed' breeds, they just haven't been bred to meet any sort of consistent breed standard.
Those two are likely Easter Egger/Barred Rock mixes.