What is the longitude of the international data line ?

The layers of earth are based on what two sets of characteristics?

Zac wanted to determine the measure of r and of ? r in the triangle below. to fine the measure of r, zac sets up the problem.42^2 + 24^2 = r 2. determine whether zac set the problem up correctly.

Cardueline finches can be found in what areas of the world?