please help me with this whole question I keep getting it wrong

According to www.fuelly.com, the 2015 Honda Accord gels 32.23 miles per gallon (mpg) with a standard deviation of 3.42 mpg. Suppose that the fuel efciency of all 2015 Honda Accords follows a normal distribution. (a) What is the z-score fora 2015 Honda Accord that averages 35.20 mpg? (Round your answer to two decimal places.) 0.8? (b) Using the Empirical Rule, what Is the probability that a 2015 Honda Accord's mpg is between 25.39 and 42.49 mpg? (c) What is the probability that a 2015 Honda Accord gets between 30.0 and 36.5 mpg? (Use a table or technology. Round your answer to four decimal places.) (d) What is the probability that a 2015 Honda Accord gets more than 38 mpg? (Use a table or technology. Round your answer to four decimal places.) (e) What is the probability that a 2015 Honda Accord gets no more than 40 mpg? (Use a table or technology. Round your answer to four decimal places.)