HELP PLEASE
1/3(6z+7.2)= 0.5(8z+2)-0.4

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

What is the vertex form of f(x) = x2 + 6x + 3

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2