You and your friend are selling magazine subscriptions for a fundraiser. After w weeks, you have sold (3w+4) subscriptions and your friend has sold (5w+1) subscriptions. a. Write an expression in simplest form that represents the difference between the number of subscriptions your friend has sold and the number you have sold.

An expression is

.

b. After 5 weeks, your friend has sold

more subscriptions than you.