Which calculates opportunity cost?

a. finding the value of the best option that is not chosen.
b. calculating the cost of time, energy, and sacrifice.
c. subtracting all costs from the total benefit.
d. adding the value of all lost opportunities.

What was an important effect of blackstone's commentaries of the laws of england? a. people in england no longer had to pay taxes b. common law became more accessible c. judges were able to rule as they d. the rights of the accused were done away with.

Germany's black forest is being destroyed as a result of which environmental issue ?

Which characteristics are true of the arabian desert? choose all answers that are correct. has land mostly below sea levelcovers almost the entire arabian peninsulacontains the largest sand sea in the worldhas very few people living there