Answer:
11
Step-by-step explanation:
First subtract
19-8= Z
So solution would be
Z=11
That means the average of all data point equal:
(99+122+103+113+109+x)/6 = 103
===> (546+x)/6 = 103===> 546+x=618 & x=618-546=72, so x =72
1/2 ÷ -3/7 = -7/6 The answer is -7/6