Are the words physics and mathematics singular or plural in the english language? plural singular

In melville's "bartleby the scrivener," why does the narrator refuse to fire bartleby even after bartleby has told him he will never write for him again? select all that apply

Which word in the sentence is the object of the preposition ? scrape the dishes and put them in the sink 1)in 2)them 3)dishes 4)sink

Where do i find advocacy articles for 2.04 english 4? this is for the first amendment.