2. A rectangular storage container with a closed top has a volume of 15m^{3} . The length of the base is half the width. If the material for the base and top costs $6 per square meter and the material for the sides costs $4 per square meter then find the cost for the cheapest such container. (please draw a label and diagram and show all the work!

3. Solve the following limits. Make sure to state the indeterminate form and write a sentence on how you are going to solve that indeterminate form. Then find the value of the limit appropriately. If you use L'hospitals rule make sure to indicate that in your work every time you use it. (a) lime -+ 0 tanz-r