Here are the fuel efficiencies (in mpg) of 10 new cars. 28, 25, 30, 22, 16, 41, 35, 18, 52, 35
What is the percentage of these cars with a fuel efficiency less than 19 mpg?

20%

Step-by-step explanation:  

Cars that are less than 19  mpg : 16, 18  

2 cars have less than 19 mpg.  

2/10  cars have less than 19 mpg.  

To change fraction to percentage :  

divide the numerator by the denominator, then multiply the decimal by 100

2/10 = 0.2

0.2*100 = 20

20%

2 is the final ! : )

correct answer:

b.(19,-2)