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Can I say,
(a)She always helps her mother to wash the bowls and plates.
(b) She always helps her mother to wash plates and more.
(c) She always helps her mother to wash bowls and cups / …wash the dirty plates.
(d) Her mother and her wash plates.
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(a)She always helps her mother (to) wash the bowls and plates. -- 'To' is almost always omitted, Vincent
(b) She always helps her mother (to) wash plates and other things/items/dinnerware.
(c) She always helps her mother (to) wash bowls and cups / …wash the dirty plates.
(d) Her mother and she wash plates.-- (you will here 'her' here in casual conversation)
Comments  
Students: We have free audio pronunciation exercises.
Should I change it to:

(a)She always helps her mother to wash the bowls and plates. dishes.
Wash (the) dishes is the commonest form, Vincent, but e.g. a ramen shop may have just bowls.