Figured out the marginal cost and marginal benefit of buying an extra smoothie. in 2-3 sentences, describe how you would use these measurements to make a decision that leaves you better off.

In 1933 the 21st amendment was added to the u.s. constitution, allowing for the manfacture, transportation, and sale of alacoholic beverages in the united states. why was this amendment needed?

Describe how ocean currents can affect a moving object ❕❕❕

How long does it take for saturn to orbit the sun?