I need help, I am very confused. Identify the outlier from the data set below.3, 7, 10, 11, 199

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.