Discover a wealth of knowledge at Westonci.ca, where experts provide answers to your most pressing questions. Get the answers you need quickly and accurately from a dedicated community of experts on our Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Sam put $2,000 in a savings account at his bank. After 10 years, his account balance was $4,000. The interest rate on the savings deposit is
%. (Hint: Use the rule of 70 to solve this problem.)