A rectangular storage container with an open top is to have a volume of30 cubic meters. The length ofits base is twice the width. Material for the base costs 12 dollars per square meter. Material for the sides costs 5 dollars per square meter. Find the cost of materials for the cheapest such container. Total cost = 9'. {Round to the nearest penny and include monetary units. For example, ifyour answer is 1.095, enter $31.10 including the dollar sign and second decimal place.)