Peter has 22 coins, all dimes and quarters whose total value is $4.30 how many of each coin does he have PLEASE HELP

How do you determine whether a relationship represented as as graph is linear or nonlinear

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

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