21 is a composite number and the closest number to 20
I hope this helps! The data they give you gives you coordinate points that will help you solve the problem!
B: -3.5,-2.7,-2.69,-2.66,-1.49
Least value = 56
Q1 = 73
median = 82
Q3 = 86
greatest value = 95
IQR = 13
Range = 39