Write a program which find the sum, difference and product of 2 numbers using switch case statement.​

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Ihave been given the number of guns per 100, and the total firearm-related deaths per 100,000. i have to find the actual number of guns per country and actual number of gun-related deaths. if somebody could show me how to do 1 question, i can finish the rest, i am just confused. tia

What key should you press and hold to select and open multiple files at one time? enter alt control esc