Final answer:
The shortest fish, the dwarf goby, is 35/100 inches long, which converts to 0.35 inches.
Step-by-step explanation:
The shortest fish ever recorded is the dwarf goby, found in the Indo Pacific. The female of this species measures about 35/100 inches long. To represent this length in decimal form, we convert the fraction 35/100 to a decimal, which equals 0.35 inches. Therefore, the correct answer to the student's question is a) 0.35 inches.