standard of living increases
"The Industrial Revolution proved to have substantially raised the living standards for people of all classes due to major factors such as increase in wages"
hope this helps :)
B is the answer. A command economy is when the central power/ government regulates the economy. Traditional is essentially bartering, trading goods and services for other goods and services, you probably won’t see this in very many countries anymore. A market economy is when private businesses are in complete control of the economy with no government intervention. this can be seen in the late 1800s when capitalism had little regulation in both america and the uk. A mixed economy is going to be the one you see most in the modern world, where both government and private businesses have power in the economy. the businesses usually have the products and distribute them while the government regulates what the companies can do. for example, child labor laws, minimum wage, and standard working conditions are all what the government has put in place to regulate private businesses. hope this helped!
Answer:
Explanation:pon studying the Gubbio samples, Luis Alvarez wanted to know how long the foram extinction lasted before the species began to re-establish itself. He suggested the samples be handed over for analysis to another pair of Berkeley Lab scientists, nuclear chemists Frank Asaro and Helen Michel, who had developed a technique, called neutron activation analysis, that enabled precise measurements of very low concentrations of elements. Luis believed that neutron activation analysis would help determine how long it took for the clay layer to form. To the surprise of everyone involved, the measurements by Asaro and Michel showed that the clay layer was about 600 times richer in iridium than the surrounding limestone. Iridium, a silvery-white metal related to platinum, is virtually absent from the Earth’s crust, but high concentrations are common in extraterrestrial objects, such as asteroids.
The plot thickened when this same “iridium anomaly” was subsequently discovered in clay layers at locations in Denmark and New Zealand, and later dozens of other sites around the world where the geological record of the Cretaceous-Tertiary boundaries are also complete. These iridium-spiked layers of clay also contained an abundance of soot. Comparisons of ratios between iridium and several other key elements in the clay layers indicated that the widely scattered iridium anomalies all came from the same source – one that was not of this earth.
it is easier if you convert fractions to decimal form.
4/5=.8, 1/2=.5, 1/4=.25
you add 22 1/2+38 1/4= 60 3/4
60 3/4= 60.75
then you multiply .8 which is 4/5 by 60.75
.8x60.75=48.6 or 48 3/5
So the answer is 48 3/5
