Ateam of 4 people participates in a 400 yard relay race. each team member runs the same distance. the team completes the race in a total of 53.2 seconds. what is the average running time for each person.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min

What is the the greatest common factor ?