I want to read 4 books over the next month. My bookshelf has 12 different books. In how many ways can I choose which books to read over the next month, without regard to the order that I read them?

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon