Someone please help , how do you solve this ?
The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she streams in a month. What is the value and meaning of f(18)?
$27.00; this is the amount Kelsey pays for 18 months of service
$27.00; this is the amount Kelsey pays for 18 movies in 1 month
$39.50; this is the amount Kelsey pays for 18 months of service
$39.50; this is the amount Kelsey pays for 18 movies in 1 month

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