Which of the following would represent an addition to a nation’s gdp a) ms. jone purchases a share of stock in a technology start-up company b) an auto rtailer purchases imported cars c) the governent hires workers to install street lights d) a business sells used watches

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Compare and contrast refraction of light and sound will give brainliest

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: