Which laws can be combined to form the ideal gas law?
a. Boyle’s law and Charles’s law
b. Gay-Lussac’s law and Avogadro’s law
c. Charles’s law, Avogadro’s law, and Boyle’s law
d. Dalton’s law, Gay-Lussac’s law, and Avogadro’s law

Amanufacturer knows that their items have a normally distributed lifespan, with a mean if 9.1 years, and standard deviation of 2.9 years. if you randomly purchase one item, what is the probability it will last longer than 10 years?