4. Here is a graph of the proportional relationship between calories and grams of fish: a. What is the slope of
the line? Show your work.
600
500
400
b. Write an equation that
relates the grams of fish
eaten (x) to the number of
calories (y).
number of calories
300
200
100
50
100
150
200
250
300
grams of fish
c. Use your equation to complete the table:
Grams of
fish (x)
Number of
calories (y)
600
2325

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?