Suppose that the average price for a gallon of gasoline in the United States is$3.76and in Russia it is $3.43. Assume these averages are the population means in the two countries and that the probability distributions are normally distributed with a standard deviation of$0.25in the United States and a standard deviation of$0.20in Russia.

a.What is the probability that a randomly selected gas station in the United States charges less than$3.55per gallon (to 4 decimals)?

b.What percentage of the gas stations in Russia charge less than$3.55per gallon (to 2 decimals)?

c.What is the probability that a randomly selected gas station in Russia charged more than the mean price in the United States (to 4 decimals)?