List the four steps in Polya’s How-To-Solve-It list.2. Describe the four steps listed in Exercise 1 in your own words.3. List the problem-solving strategies discussed in this chapter.4. Apply the problem-solving strategies to the following situations.a. Buying a toy for your four-year-old cousinb. Organizing an awards banquet for your soccer teamc. Buying a dress or suit for an awards banquet at which you arebeing honored5. Examine the solutions in Exercise 4 and determine three things theyhave in common.6. What is an algorithm?7. Write an algorithm for the following tasks.a. Making a peanut butter and jelly sandwichb. Getting up in the morningc. Doing your homeworkd. Driving home in the afternoon8. List the three phases of the computer problem-solving model.9. How does the computer problem-solving model differ from Polya’s?10. Describe the steps in the algorithm development phase.11. Describe the steps in the implementation phase.12. Describe the steps in the maintenance phase.13. Look up a recipe for chocolate brownies in a cookbook and answerthe following questions.