You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.
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Question: Sally picked 7 lemons and Mary picked 9 lemons from the lemon tree. How many lemons were picked in total?

Answer: 16.0


Question: Nina did a running drill to get in shape for soccer season. First, Ninaran 0.08 mile. Then she ran 0.18 mile and 0.54 mile. How many miles did Nina run intotal?

Answer: 0.8


Question: At the beach, Janet and her sister both built sandcastles and then measured their heights. Janet's sandcastle was 3.6 feet tall and her sister's was 2.3 feet tall. How much taller was Janet's sandcastle than her sister's?

Answer:
1.3