Answer:
Sorted Data Set: 2, 10, 12, 13, 14, 15, 17, 18, 18, 20, 21
Mean (Average) 14.545454545455
Median 15
Range 19
Mode 18, appeared 2 times
Geometric Mean 12.803503609558
Largest 21
Smallest 2
Sum 160
Count 11
First Quartile Q1 = 12
Second Quartile Q2 = 15
Third Quartile Q3 = 18
Interquartile Range IQR = 6
Answer:

Step-by-step explanation:

just multiply across
-k*7=-7k
5*5=25

hope this helps
28x+-21 you simplify them first
Answer:
4x - 6
Step-by-step explanation:
6 less is -6
product of four and a number x is 4x