Write Java expression for:

$\dfrac{|𝑎 + 𝑏|}{\sqrt{a^2 + b^2}}$

if (a>b&&b>c) then largest number is:

1. b
2. c
3. a
4. wrong expression

Identify the operator that gets the highest precedence while evaluating the given expression:

a + b % c * d - e

1. +
2. %
3. -
4. *

A student needs to calculate the average of three numbers x, y, and z. Which is the correct Java expression for this calculation?