write expression from context

Hog 17, 4:38:00 PM Watch help video Serenity signed up for a streaming music service that costs $5 per month. The service allows Serenity to listen to unlimited music, but if she wants to download songs for offline listening, the service charges $1 per song. How much total money would Serenity have to pay in a month in which she downloaded 30 songs? How much would she have to pay if she downloaded s songs? Cost with 30 songs: Cost with s songs: Submit