Mr. Redding sells vehicles to 20% of the people that come to the sales lot. If 65 people came to the lot last month, how many vehicles did Mr. Redding sell?

13 vehicles

To Find out the number of vehicles sold you just multiply the percentage by the Whole number
E.g:
65 people x 20%= 13
So 20% of 65 would be the number of vehicles sold
13
Hope this is simple and helpful.