At a conference of 250 people, 30% of the participants are french, 35% are americans, 20% are germans, and the rest are of other nationalities. how many french participants are at the conference?

50
75
150
175

30% of the 250 participants were French.
To find how many this is, convert the percent to a decimal and multiply the decimal by the total number of participants.
30% = 0.3
0.3 • 250 = 75
75 of the participants were French.