20 a lamp manufacturer has daily production costs of c = 0.25n2 – 10n + 800, where c is the total cost in dollars for n lamps produced. what is a reasonable domain for this function, given the problem's context?
a) all integers
b) all real numbers
c) all positive integers
d) all positive real numbers

answer:

i am not 100% sure but i think the answer is b

step-by-step explanation:

hope this is correct

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.