Adinner bill of $31.37 had 6% tax added to the total. what was the amount of the tax

Which point is a solution to y s 4x + 5?

Ineed to know the answer to this algebra question.

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