Assignment 15Due Thursday, November 17 at 3:20pm on CatalystAssignment 15.1: Calculating My Grade (10 pts)Make a copy of this Google worksheetNote that you can simply go to File->Make a CopyOr download the document as an Excel spreadsheetAdd up the number of points you have received in each category of this classWhat is your current percentage in the course?Now fill in the second half of the grade worksheet with your current point totals and enter an estimated grade for midterm 2.What score do you need on midterm 2 to have (or keep) an A, B, and C in the class?Enter various scores in the midterm 2 cell to see how these scores would affect your grade.When you are finished, save the completed worksheet as either a pdf or an xls documentUpload it to CatalystAssignment 15.2: Vowels (10 pts)Write a program that takes in a sentence from the user and then counts the number of vowels in the sentence.You will need to use getline(), the string.length() function, and a for loop to correctly solve this problem in C++.Open up a new C++ file called vowels.cpp.First, welcome the user to the program and explain its purpose:Welcome! Give me a sentence and I will count its vowels.Then prompt the user to enter a sentence.Please enter a sentence: _Store the user input as a string variable.Now, using a for loop and the string.length() function, count how many vowels (a, e, i, o, u) there are in the sentence.Note that the program should also count capital vowels (A, E, I, O, U).Finally, output the number of vowels like so:There are 5 vowels in your sentence.Make sure that your sample output matches mine.Then, submit your program to Catalyst.The output of your program should look identical to the sample output below.It should also count capital letter vowels like this: