[Solved]Eniter Decimal Value O 15 5 Hex Value 5 Enter Decimal Value 0 15 31 31 Invalid Input 415 P Q37197559

question 4.15: to solve with C++
Eniter a decimal value (O to 15):5 The hex value is 5 Enter a decimal value (0 to 15): 31 31 is an invalid input 4.15 Phone key pads) The international standard letter/number mapping found telephone is shown below: tuv pqrs Write a program that prompts the user to enter a letter and displays its correspond ing number nter a letter: AE The corresponding number is 2 Enter a letter: a n The corresponding number is 2 Enter a letter: nter + is an invalid input Sections 4.8-4.11 (Process a string) Write a program that prompts the user to enter a string and dis plays its lenth and its first character. 4.16 Show transcribed image text Eniter a decimal value (O to 15):5 The hex value is 5 Enter a decimal value (0 to 15): 31 31 is an invalid input 4.15 Phone key pads) The international standard letter/number mapping found telephone is shown below: tuv pqrs Write a program that prompts the user to enter a letter and displays its correspond ing number nter a letter: AE The corresponding number is 2 Enter a letter: a n The corresponding number is 2 Enter a letter: nter + is an invalid input Sections 4.8-4.11 (Process a string) Write a program that prompts the user to enter a string and dis plays its lenth and its first character. 4.16

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Answer to Eniter a decimal value (O to 15):5 The hex value is 5 Enter a decimal value (0 to 15): 31 31 is an invalid input 4.15 Ph… . . .