Question

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.

A expression is __

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

Answer 1

A. 2w-4

B. 12

Explanation:

A. (9w+2)-(7w+6) Distribute the negative

9w-7w+2-6 Combine like terms

2w-4

B. 2w-4 Substitute 8 for w

2(8)-4 Multiply 2x8

16-4 Subtract 16-4

12