$1.$ The code below will draw a square. How many pixels have been drawn?

import turtle

t $=$ turtle.Turtle$()$

for i in range$(4)$:

t$.$forward$(50)$

t$.$right$(90)$

turtle.done$()2.$ Write a single line of code to change the turtle screen colour to blue. Assume the only code that has been written so far is the line below:

import turtle

$3.$Write a single line of code to change the turtle screen colour to yellow AND change the screen width to $500$pixels, and the height to $300$pixels. Assume the only code that has been written so far is the line below:

import turtle $4.$Write a single line of code to draw an $180$degree arc that has a radius of $50$pixels.

What is the method to allow the user to input information into Turtle $($do not include the parameter for the method$)?$

What is the method that outputs text on the turtle window $($do not include the parameter for the method$)?$