Please show work step by step

1. The Grande supermarket has decided to stack its canned goods in a pyramid formation. There are 101 cans in the first row, 96 cans in the second row, 91 cans in the third row, etc. There are 21 rows. a. Use the formula for the nth term of an arithmetic sequence to determine the number of cans in the final row. b. Use the formula for the sum of an arithmetic sequence to determine the total number of cans in the pyramid. 2. Write Python code that uses a for loop to generate and print the 21 terms of the pyramid of cans sequence. The code should also calculate and print the sum of the 21 terms