Answer:
Step-by-step explanation:
Given that Jack divided his fortune of 92,000 into 8 equal portions.He gave 4 portions to his wife , 1 portion to his son and divided the remaining portions equally among 5 charities.
The portion son gets = 
Charity on the whole gets = 3 portions = 
Each charity gets = 
Thus we find son gets 11500 dollars while each charity gets 6900 dollars.
The difference = 
4600 dollars he got more.
Looking for the height, if trapezoid area equals (a+b)/2 x h then h = 2A/(a+b)
so h = 2(30)/(4.8+5.2) = 6
Answer:
first one
Step-by-step explanation: