Need some help from these questions for my Programming class. We are using Python 3.7

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Thank you!

Write a dictionary program that lets users enter certain words and definitions and then look them up later. Make sure you let the user know if their word isn't in the dictionary yet. It should look something like this when it runs: Add or look up a word (a/l)? a Type the word: computer Type the definition: A machine that does very fast math Word added! Add or look up a word (a/l)? 1 Type the word: computer A machine that does very fast math Add or look up a word (a/l)? 1 Type the word: qwerty That word isn't in the dictionary yet. Write a function to calculate the total value of some change-quarters, dimes, nickels, and pennies (just like in the last "Try it out" question from chapter 5). The function should return the total value of the coins. Then write a program that calls the function. The output should look like this when it runs: quarters: 3 dimes: 6 nickels: 7 pennies: 2 total is $1.72