sarah puts $500 in a savings account that earns 3.15% compounded annually. how long does it take for sarah to double her money

Which of these triangle pairs can be mapped to each other using two reflections?

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

With finding limits of multi variable !