Write a php script that computes the total cost of the ordered light

Chapter 9:
1. Exercise 9.10 (p. 399)
Write a PHP script that computes the total cost of the ordered light bulbs from Exercise 9.9 after adding 6.2 percent sales tax. The program must inform the buyer of exactly what was ordered, in a table.
Chapter 10:
2. Exercise 10.6 (p. 430)
Modify the example application of Section 10.2 to use Prototype.
Chapter 11:
write a servlet the computes the total cost of the ordered light bulbs from Exercise 11.8 after adding 6.2 percent sales tax. The servlet must inform the buyer of exactly what was ordered, in a table.
4. Chapter 12:

Exercise 12.3 (p. 557)
Modify the ASP.NET document controls.aspx and its accompany- ing code-behind file, controls.aspx.cs , to add the following: a text box for the user’s address and a drop-down list for favorite category of music (rock, rap, country, classical, jazz), which must be populated in the code-behind file. The values of the new controls must be output when a postback is done.
5. Exercise 12.5 (p. 557)
Modify the ASP.NET AJAX zip code application to provide the address, zip code, city, and state of old customers. Use a hash whose keys are last names and first names, catenated. The information about the customer can be a single string with the address, zip code, city, and state, all catenated together.