3 Paul and Polly sell lemonade in front of their house in the summer During the month of June they sold about 26 cups of lemonade a day at a price of 0 50 per cup In July they plan to increase their cups sold by 2 cups every day with some clever new advertising They will also decrease the price per cup by 1 cent every day Write an equation for a function L d that gives the amount of money Paul and Polly make selling lemonade on day d in July