Help me please and thank you. Not geography

Based on this map, which statement about africa’s economic activity is most accurate? a) coastal countries are all members of opec b) economic development is more common with opec nations c) coastal countries have more access to productive resources d) economic development is more common above the sahara desert

Which numberline shows the solution to n -3

In the diagram below, ab and bc are tangent to o. what is the measure of