Concept:Multiplying decimals is easier when you convert them to fractions.Explanation:Write 0.013 as 13/1000 and 0.07 as 7/100.Multiply the numerators: 13×7=91.Multiply the denominators: 1000×100=100000.The product is 91/100000, which equals 0.00091.Answer:A. 0.00091