Van is training for a triathlon, a timed race that combines swimming, biking, and running. Van has only 20 hours per week that he can devote to training for his race. Which basic principle of individual choice does this scenario illustrate

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

they can increase to boost the enonomy.

i am confused, what is the question? i can you out if you put it into more depth.

6.3%

explanation:

the acceptance rate for yale university is 6.3%. this means that only 6 percent of people who apply actually get accepted!