How many unique triangles can be drawn with interior angles measuring 40°, 40°, and 100°?

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

Which modern technology has not made a great difference in the inuit way of life?

Which event had the greatest impact on culture of south america