A driver gets in a crash, claiming he was going under the speed limit. The speed limit was 55 mph. The skid marks from the car were 140 feet in length. Using the formula L=1/24S^2, find out if he was really going under the limit. Show the steps please!

Just tell me how to set up the equation.

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?