Answer the following 3 questions in this notebook and submit your completed notebook (in .ipynb format) to the assigned dr respective Lecture section's BrightSpace page Q1. Some of the following variable names are invalid in Python. Identify whether an identifier is invalid and explain the reason. 1. covid 19 2. Covid 19 3.coviD 19 4. Covid-19 5. Covid$19 6. print 7. del 8 thin 1 Ans Q1 here Q2. Create each of the following variables a variable named with the value 20 a variable named y with the value 3525 a variable named z with the value 5 a variable named with the value > Markdown I 1: 13: . . Q3. Write a Python expression for each of the following. 3x + y 5x? - 101 (+10) * divided by 13 but with no remainder area of a circle with radius remainder of square root of y length of the hypotenuse of a right-angled triangle where the length of the other two sides are x andy D 10 . go 30 go