1. The function S(D) = 7/2 2D can be used to approximate the speed S, in miles per hour, of a car that has left skid marks of length D, in feet. How fast would a car have been traveling if it left a skid mark that is 102.04 feet long? Round to the nearest integer. Clearly state your final answer in a complete sentence with proper grammar and correct spelling.

2. For each planet in the solar system, its year is the time it takes the planet to revolve around the center star. The formula E(x) = 0.2x^3/2 models the number of Earth days in a planet's year, E, where x is the average distance of the planet from the center star, in millions of kilometers. There are approximately 88 Earth days in the year of the planet Mercury. What is the average distance of Mercury from the center star? Round to the nearest million kilometers. Clearly state your final answer in a complete sentence with proper grammar and correct spelling.