1.) Of the cars sold during the month of July, 91 had air conditioning, 104 had automatic transmission, and 80 had power steering.8 cars had all three of these extras.20 cars had none of these extras. 16 cars had only air conditioning, 65 cars had only automatic transmissions, and 28 cars had only power steering.12 cars had both automatic transmission and power steering.How many cars had air conditioning and automatic transmission but not power steering?

2.) A survey of 500 high school students was taken to determine their favorite chocolate candy.Of the 500 students surveyed, 139 like Snickers, 184 like Twix, 181 like Reese's Peanut Butter Cups, 129 like Snickers and Twix, 109 like Twix and Reese's Peanut Butter Cups, 71 like Snickers and Reese's Peanut Butter Cups, and 70 like all three kinds of chocolate candy.How many students like Twix and Reese's Peanut Butter Cups only?

3.) A survey of 500 high school students was taken to determine their favorite chocolate candy.Of the 500 students surveyed, 143 like Snickers, 130 like Twix, 163 like Reese's Peanut Butter Cups, 51 like Snickers and Twix, 43 like Twix and Reese's Peanut Butter Cups, 86 like Snickers and Reese's Peanut Butter Cups, and 34 like all three kinds of chocolate candy.How many students like no more than one kind of these chocolate candies?