: Ryan needs to buy a new hoodie. The ticket price of the hoodie was $65.00. After sales tax
was added, the final cost was $74.25. What
percent sales tax did Ryan pay on his hoodie?

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given