Who has this book and can help with 1-4

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

Simplify. 3(4+4x) (type your answer in with no spaces)

How many square centimeters of wrapping paper will be used to wrap the shoe box?