Question: Write the following programs in ML: 1) Print Hello World to stdout 2) Write a program that reads a text file and outputs the text

Write the following programs in ML:

1) Print "Hello World" to stdout

2) Write a program that reads a text file and outputs the text file with line numbers at the beginning of each line.

3) Write a program that accepts a number N from stdin and prints out the volume of a sphere with radius N meters to stdout.

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