Katie ordered candles that cost $3 each from a website. she was charged a flat shipping fee of $6 and no sales tax. if she spent a total of $54, which equation can be used to find c, the number of candles she ordered?
3c = 54
6c = 54
3c + 6 = 54
3c – 6 = 54

43lbs of tomatos cost $387. how much would 41lbs cost

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Wrote and expression for the difference of p and 4