Practice calling methods

Write a function that returns the minimum of two numbers. Hint: You need to write the body of the existing min function.

Write a function that computes the minimum of three numbers. Hint: You need to write the body of the existing min function.

Write a function that computes the minimum of four numbers. The function min(a, b, c, d) should use (call) the function min(a, b) Hint: You need to write the body of the two existing min functions.

Implement the print3 method. The method should display the passed string 3 times. Each time, on a new line.

Implement the print3 method. The method should display the passed string (word) three times, but on the same line. Words must be separated by a space and should not merge into one.

Programmers often move from place to place, but only if they want to. That's why they love converters so much. Well, maybe that's not why. Still, we will practice writing them. Now imagine that you have to work at a particular location: the Moon. Let's implement a method that converts your Earth weight to your lunar weight.