Why does the failure of workers and firms to accurately predict the price level result in an upward-sloping aggregate supply curve? a. because contracts between workers and firms make some wages and prices "sticky" b. because menu costs make some prices "sticky" c. because firms are often slow to adjust wages d. all of the above.

What is meant by a symmetrical unimodal distribution? a. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. b. a distribution is a pattern of frequencies for the various values of a variable collected in a study. a symmetric unimodal distribution is a distribution where there is one value with a larger frequency than any other and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other. c. a distribution is the frequency at which a certain value of a variable is obtained during a study. a symmetric unimodal distribution is a distribution where there is a uniform frequency, meaning the frequency of every value is same, and the pattern of frequencies on the left and right of this larger frequency are mirror images of each other.

Which of these accomplishments is most closely associated with andrew young? becoming the first african american mayor of atlanta building an international terminal at atlanta's major airport securing atlanta as the host city for the summer olympics in 1996 enforcing non-discriminatory voting policies in atlanta and the suburbs

An object weighs 40n in air , weighs 20n when submerged jn water and 30n submerged in a liquid of unknown density .what is the density of the liquid?