### Instruction: Jessica wrote a long letter to her aunt and needed to put stamps on it to mail it. She used eight pieces of paper that weigh 1/5 of an ounce each, and her envelope weighs 2/5 of an ounce. She needed one stamp per ounce. How many stamps did Jessica need to mail her letter? Let's write a program.### Response: # define the weight of each paper and envelope
paper_weight = 1/5
envelope_weight = 2/5

# calculate the total weight
total_weight = 8 * paper_weight + envelope_weight

# calculate the number of stamps needed
stamps_needed = round(total_weight)

# print the result
print(stamps_needed)