1.Using data in Exercise 3.20, calculate the profit for four companies instead of two . 2. Reading in four pieces of numerical data from the user to be used elsewhere in the algorithm. 3. Reading in...

1.Using data in Exercise 3.20, calculate the profit for four companies instead of two . 2. Reading in four pieces of numerical data from the user to be used elsewhere in the algorithm. 3. Reading in one piece of numerical data from the user to be used elsewhere in the algorithm. 4. Determining the smallest of four numerical values and returning that value.