Multi-Step Equations

http://youtu.be/nD8ozEaeJrg   Boost Mobile™ offers a 64GB iPhone® 6 Plus for $749.99 and unlimited talk, text, and 1 GB of high speed data for $35/mo. with no contract. AT&T™ offers a 64GB iPhone® 6 Plus for $399.99 and unlimited talk, text and a 1 GB high speed data plan for $50/mo. but requires a two [...]