Which formula can be used to represent the sequence below {2,5,17,65,257,...}

Is every rectangle is a parallelogram? true false

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

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.