State the number of degrees of longitude that separates New York City from Reno, Nevada, and the time difference, in hours, between these two cities

The number of degrees of longitude that separate New York City and Reno, Nevada is 120 - 75 = 45 degrees of longitude. The time difference can be calculated by dividing it by 15 degrees because for every 15 degrees there is 1 hr difference. 45 / 15 = 3 hr difference