(1) Does Renee have enough prizes? Explain how you solved the problem.

For the number -3 , give the following: A.) The opposite of \( -3=\square \) B.) The reciprocal of \( -3=\square \) C.) The absolute value of \( -3=\square \)

76. \( \vec{a}, \vec{b}, \vec{c} \) векторларнинг компланар бўлиши учун улар орасида \( \alpha \vec{a}+\beta \vec{b}+\gamma \vec{c}=0 \) чизикли боғланишнинг мавжуд- лиги зарур ва етарли эканлигини исботланг, бу ерда \( \alpha, \beta \), \( \gamma \in \boldsymbol{R} \) ва \( \alpha^{2}+\beta^{2}+\gamma^{2} \neq 0 \).

b) \( -3 a-6 a= \) d) \( -5 y+9 y= \) f) \( -3 h+2 h-4 h= \) h) \( -5 t+4 t-6 t+2 t= \)

Fractions Docimals Percentages and Basic Geometry Lesson 2 \( 87.3 \times 10.7= \)

A teacher suspects that a bottle of butan-1-ol has become accidentally contaminated with some butanal. Describe a chemical test to confirm this suspicion. Your answer should include: - the reagent and reaction conditions - observations - structural formulae of any organic product(s).