79hfzj5xan 79hfzj5xan 06-01-2021 Mathematics contestada Please help me out I don’t know how to do these I will put you brainlist and likes Find the GCF set of numbers 28. 12, 20, and 32 29. 15x², 27x^3, and 30x^4 30. 72ab, 90ac, 108abc