Answer: I'm almost 100% sure that the 2nd one is correct, but I would wait for another opinion as well.
Explanation:
Answer:
the technology being used in this is a news paper machice/book machie
Explanation:
used to ake stuff with words and pictures on it.
assuming efficiency of each man to dig trench, in one day, for one hour is constant,
so one man, working for one hour in one day can dig 1.5 m
so 8 men, working 3 hours a day and will take, say $d$ number of days and efficiency will be constant. so,
$\frac32=\frac{220}{8\times3\times d}$
$\implies d=\frac{55}9=6.12$
Answer: an economic phenomenon where two parties each hold an item the other wants, so they exchange these items directly without any monetary medium!!
hope this helped :)
Answer:Incumbent Democratic United States President Lyndon B. Johnson had been the early front-runner for his party's nomination, but he announced his withdrawal from the race after anti–Vietnam War candidate United States Senator Eugene McCarthy finished second in the New Hampshire primary.
Explanation:
