Each person attending a fund-raising party for a certain club was charged the same admission fee. how many people attended the party?
(1) if the admission fee had been $0.75 less and 100 more people had attended, the club would have received the same amount in admission fees.
(2) if the admission fee had been $1.50 more and 100 fewer people had attended, the club would have received the same amount in admission fees.

Let a = admission fee

Let n = number of people who attended the party

(1) If the admission fee had been $0.75 less and 100 more people attended, the club would have received the same amount in admission fees.

    ...(1)

(2) If the admission fee had been $1.50 more and 100 fewer people had attended, the club would have received the same amount in admission fees.

  ......(2)

Subtracting (1) from (2) we get

n = 300

And substituting n = 300 to get value of a;

a = 3

Hence, $3 was admission fee and 300 people attended the party.

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.