Because 30 % of 100 is 30 so you multiply 30 5 times to get 150
do not believe the other guy because if you multiply the Americans which is 15 times 5 would be 75 and you add that to 150 to get 225 and then you multiply 5 times 5 to get 25 then you add all of them to get 250 which is half of the participants there so 150 is the answer THIS IS YOUR MODULE 7 EXAM BELIEVE MY ANSWER!!!!!!!