Respuesta :
Number line graph with closed circle on 30 and shading to the rightbecause you already have 30 dollars and they need at least 120 but if they get more then 120 they can still hold the science fair.
This is a really a not well put question, well in order to organize the fair you're gonna need atleast 150, you have 30. 120 and up should be your answer.
but then you need to get the steps to 120, which is 60, 90, 100, 120, so. Either one is good, well explainable.