The cost (C) in dollars for renting a hall for an upcoming event is given by the formula C(n)=400+5n where n is the number of people attending the event.

a) Calculate the the cost of renting the hall if 117 people attended.

b) How many people attended the dance if it cost 845$?

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv