Answer:
B z = 0.9
Step-by-step explanation:
1/3(6z + 7.2) = 0.5(8z + 2) - 0.4
Multiply both sides by 6.
12z + 14.4 = 24z + 6 - 2.4
-12z = -10.8
z = 0.9
Mean = 7
Median = 8
Mode = 3
Range = 9
1/3
48+32+16=96
numerator : 32
denominator : 96
32/96=1/3
not 2