Develop a PHP function CalculateGrade that takes a numeric score as a parameter

and returns the corresponding grade based on predefined criteria. Use HTML to create

a form where users can input their score, and display the calculated grade upon

submission.

Write a web service that accepts a base and exponent and outputs base raised to the

exponent Power. For example, the following query should output $81$ :

http:$//$example$.$com$/$exponent$.$php$?$base$=3$&exponent$=4$

Now, write the PHP code for the web service that processes the request and returns the

JSON response.

$"$It is possible to convert a persistent cookie into a session cookie." $-$ do you agree

with this statement? Explain your choice briefly.

$"$It is possible to convert a persistent cookie into a session cookie." $-$ do you agree

with this statement? Explain your choice briefly.