Question: cisc3140 2. Write 3 short programs in the Scheme programming language: 1. A four-function calculator (+,,,l). You may assume that the parameters passed to your

cisc3140

2. Write 3 short programs in the Scheme programming language: 1. A four-function calculator (+,,,l). You may assume that the parameters passed to your calculator are legal and do not require editing. For information on the Scheme language, see the book How to Design Programs that can be obtained at htdp.org. 2. Reimplement (i.e., write your own version) a function to reverse an arbitrary list. 3. Write a function that will count the number of times the string " e " appears in an arbitrary list

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