Earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 1000-meter-long timeline, with the birth of earth on one end and today at the other end. 2 billion years is represented by how many meters of the timeline?

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.