Which set of lengths are not the side lengths of a right triangle? (a-28, 45, 53) (b-13, 84, 85) (c-36, 77, 85) (d-16, 61, 65) [explain]

Molly planted vegetables in 0.6 of her garden and flowers in the rest of it. she planted green beans in 0.4 of the vegetable section of the garden. how much of her garden was planted with green beans?