html and java

and for exercise 2 how can i add zip file here

Lab Exercises: You will be using the website attached (website zip) for all of the exercises. Meaning that any solution you write, must be included in the website. Once you are done, compress the main folder that contains all of the files for the website and upload it to the elearning. Exercise 1 Write a JS function that will take an array as an argument and will calculate the avg of the numbers given in the array. If the array is empty the avg should be zero. The result should be printed in a div with an id of 'divAvg'. The array must be inserted by the user once the page loads using window. prompt. Example avg(11,2,3]) //prints 26 avg(I) Hprints 0 Exercise 2 Include your own javascript code or file to the index.html and do the following once the page loads: - Change the font color of all elements whose class is "changeMyColor". The new color is red. - Change all of the Images alt attribute text to 'New alt for the image' - In section "Our Services", study how every column is created (html) and what each column contains. Using JS create a new element and append it to the "Our Services" section. You can use any icon you want and the title of the column must be "SEO" and the subtitle(content under the title) should be "Search Engine Optimization". - If you scroll down to the "Let's Get In Touch" section you will find two input fields and a button, you need to create a function that will take values inserted into the fields and print them concatenated to each other in a div whose id is 'formMsgHere'. The function must be attached to the form button. - Write a function that will be attached to the button found on the "Free Download At Start Bootstrap" section. When pressing the button, all of the images inside the page must disappear. - You need to create a new class called Newphone_size that will change the font size for phone number to 50px. - You need to write an event that whenever a mouse hovers over the phone number, the code must add the class "Newphone size" to the element id "phone" thus changing the phone numbe size. This must be done using Javascript (don't use CSS hover)