A 45 minute lesson plan in which students calculate tax and tip at a "night out." The problem is included on a linked website that allows them to customize their meal. Aligns with Common Core standard 7.RP.A.3.
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Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.