Police officers investigating car accidents measure the length of the skid marks on the pavement. Then they use square roots to determine the speed, in miles per hour, a car was going before applying the brakes. According to some formulas, if the length of the skid marks is `d` feet, then the speed of the car can be found by evaluating `sqrt(24d)`.
An accident investigator measured the skid marks of a car and found their length was 50 feet. Estimate the speed of the car before the brakes were applied? Round your answer to two decimal places.
mph