Which mathematical advancement allowed calculations to be more easily understood? the invention of the graph
the formula to describe shapes
the creation of negative numbers
the standardization of math symbols

Which are in millennium development goals check all that apply

From the soviet point of view, which reagan policy most threatened to create a new arms race? a. strategic defense initiative b. u. s. support for israel c. aid to the anti-soviet rebels in afghanistan d. iran-contra scandal

Human beings spread all around the world over a period of millions of years. identify when humans arrived in different regions of the world. 200,000 years ago 100,000 years ago 40,000 years ago 30,000 years ago