Recall that the difference between a country's exports and imports is called the country's trade balance. suppose last year the united states had $968 billion in exports and $1658 billion in imports. what would be the u. s. trade balance for that year?

Let's call trade balance b, exports e and imports i.

We now construct formula.

Put in the data from last year.

U.S trade balance for that year is -690 billion dollars.

b) the dogs need to shift their focus to human scent.

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .