Problem $1$

Given an array as follows

$$long $[][]$ nums $=\{\{1,2,3,4,5\},\{6,7,8,9\},\{10,11,12,13,14,15\},\{16,17,18,19,20\},\{21,22,23,24,25\}\}$;

Build the following methods:

$1)$ calcTotal:$$The method should accept a two$-$dimensional array as an argument and return the total of all the values in the array.

$2)$ calcAverage:$$The method should accept a two$-$dimensional array as an argument and return the average of all the values in the array.

$3)$ calcRowAverage:$$The method should accept two parameters: $1)$ a two$-$dimensional array as an argument and $2)$ an integer that represents a row number for calculations. Return the average of all the values in that row in the array.

Problem $2$

Two arrays are given:

String cars$[]=\{"$Honda Accord", "Chevrolet Suburban", "Dodge Charger", "Kia Optima", "Acura TLX$"\}$;

integer prices$[]=\{17000,48000,24000,22500,17999\}$;

Write a method that finds the cheapest car name, and returns back a String stating what the car name is and how much it costs. The method should take two arrays as two parameters $($you do not need to make a two dimensional array out of these arrays$).$

Call this method from main$(),$ receive the result, and show the result