The square below represents one whole. What percent is represented by the shaded area?
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Can anyone help me please?

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?