Please help it’s due soon

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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

Find the value of x. give reasons to justify your solutions! c ∈ ae