Discover the answers to your questions at Westonci.ca, where experts share their knowledge and insights with you. Discover in-depth solutions to your questions from a wide range of experts on our user-friendly Q&A platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

a: 7x2-x+8y units
b: x + 9y units
find the perimeter of these two sides