The cost, in dollars, of a one-day car rental is given by c(x) = 31 0.18x, where x is the number of miles driven. in this function,
a.$0.18 is the cost per day to rent the car and $31 is the cost per mile.
b.$31 is the cost per day to rent the car and $0.18 is the cost per mile.
c.$18 is the cost per day to rent the car and $0.31 is the cost per mile.
d.$31 is the cost per day to rent the car and $18 is the extra cost for unlimited miles.

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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?

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )