You and your friend are selling magazine subscriptions for a fundraiser. After w weeks, you have sold (7w + 6) subscriptions and your friend has sold (9w + 2) 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

b. After 8 weeks, your friend has sold more subscriptions than you.

PLSS HELP!!!