Takumi earns $8.50 per hour proofreading advertisements at a local newspaper. he works no more than 5 hours a day. write a function for his earnings.

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