Please solve this question with detailed explanation

14. The Sticker Warehouse sells rolls of stickers for $4.00 each. The average customer buys six rolls of stickers. The owner finds that, for every $0.25 decrease in price, the average customer buys an additional roll. A. Total sales revenue is the product of the number of units sold and the price. Make an algebraic model to represent The Sticker Warehouse's total revenue per customer. B. With how many price reductions will the revenue per customer be $30? C. What is the maximum predicted sales revenue per customer? With how many price reductions will this occur