All of these factors have affected mozambique's economy except
a. massive flooding
b. natural resources
c. large labor force
d. oil export profits

I'm pretty sure there's a geometry rule for   anyways, if the triangle is equilateral, and the circle is circumscribed, the circle is outside of the triangle.  to find the area, you need the radius.  the radius should be a straight line from the center of the triangle to any of it's points.  draw lines from the center of the circle to each of the triangle points.  draw three more lines from the center to the middle of the sides of the triangle.  you should now have six separate 30-60-90 triangles inside of your original triangle. use your 30-60-90 rules to solve for the radius, then the circumference. 

There is no map, maybe give the link, it may be b

This question has already been answered by someone else.here is a link.  hope that it .

The correct answer for this question is this one:
" (3) adirondack mountains" the  geologic feature that is composed of the
youngest crustal bedrock is the  adirondack mountains. hope this answer your question. have a great day ahead.