Which of these is a risk of IV drug use? HELP ASAP

Suppose you calculate that elasticity of demand for cigarettes is 0.5. you can conclude that: a. demand for cigarettes is elastic b. demand for cigarettes is unitary elastic c. a 1% increase in price of cigarettes will result in a 0.5% decrease in quantity demanded d. a 1% increase in the price of cigarettes will result in a 0.5% increase in quantity demanded.

What are 3 social benifits, 3 emotional benifits and 3 physical benefits to abstinence?

How do healthier citizens save the government money?