Answer: Revenue per day = $236.61
Step-by-step explanation:
Here, given:
Selling price for each song = $0.99
Revenue function: R(x) = 0.99x
where, "x" represent the no. of songs sold through their website.
Songs downloaded = 239 per day
Therefore , the daily revenue is given as;
Revenue per day:

Revenue per day = $236.61