Identify the lower quartile (Q1), the median (Q2), and the upper quartile (Q3) for this data set. {6, 7, 9, 10, 12, 14, 15, 17, 19, 21}

A) Q1 = 9, Q2 = 13, Q3 = 17
B) Q1 = 6, Q2 = 13, Q3 = 21
C) Q1 = 6, Q2 = 14, Q3 = 19
D) Q1 = 9.5, Q2 = 12.5, Q3 = 18.5

A

Step-by-step explanation:

6,7,9,10,12,14,15,17,19,21

number of terms=10

median Q2=average of 5th +6th term=(12+14)/2=13

`Q1=9

Q3=17

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.