I need answer for this question plese using scheme code

Question 1. Your scheme program should return/show up to nth elements of the following series (solve any two series from the following lists- you may write separate program for each series) (2 pts)

• 1, 1, 3, 7, 17, 41
• 10 50 140 300 550
• 1 2 9 4 20 27 7 56 81 .
• 1 -4 3 -8 5 -16 7 ..

Question 2: Write a scheme program that accepts two lists- first one contains the key symbols and second one contains random symbols. The program should find out frequency of key symbols in the second list (1.5 pts)

Input: ((A X b) (A M z A X b S R T A X L M))

Output: (A 3 X 2 b 1)

Question 3: Write a scheme program that accepts two lists and use the 1^st list to remove elements from the 2^nd list. (1.5 pts)

Input: (3 4 8 2) (A B X D 5 W H % K O)

Output: (A 5 W H K O)