This is the question and I did it but I am wondering where I went wrong!

Write a Java application that uses the Math class to determine the answers for each of the following:

The square root of $37$

The sine and cosine of $300$

The value of the floor, ceiling, and round of $22\mathrm{.}8$

The larger and the smaller of the character $$D$$ and the integer $71$

A random number between $0$ and $20($Hint: The random$()$ method returns a value between $0$ and $1$; you want a number that is $20$ times larger.$)$