the perimeter of an isosceles triangle is 7.5m and the length of a leg is 2m find the length of the base

According to modern science, 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 10-meter-long timeline, with the birth of earth on one end and today at the other end.

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

What’s -11-33k and factor each expression completely