CSI 120 C# program

#4. Request the quantity and price of an item from the user. Calculate the subtotal. Tax of 10% is charged on the subtotal. Calculate the tax amount, the output the subtotal, tax amount and grand total to the console. Format the output for Currency. Test Data : 100, 2.50 Expected Output: Subtotal $250.00 Tax $25.00 Grand Total $275.00 #5 Request two integer values from the user. If both are positive output that both values are positive. If one is negative add the two numbers together and output the result. If both are negative multiply the two numbers together and output the result. Test Data: 5.10