Write a program that prints the total sales and the average sales for the day

Problem 1: The Weird Widget Company of New York has several stores in New York. Each evening, the corporate office in midtown Manhattan receives sales figures from each store in a list of tuples. Each tuple contains two elements, (store, sales).
Write a program that prints the total sales and the average sales for the day. Use a for loop to calculate the total sales and the average sales (try not to use any external libraries!).