Answer:
Letter C
Step-by-step explanation:
Given:

Subtract 18 from both sides

Divide 5 from both sides to get
alone

Letter C is the correct answer choice because the dot is at -9, the arrow is facing to the left, and the dot is open indicating that it's not greater/less than ""or equal to"".
Hope this is helpful
Answer:
x>-2.5
Step-by-step explanation:
Y=mx+b
m= slope so slope= .5
b= y intercept so y intercept=0
Answer:
The mean for the combined sample = 6.
Step-by-step explanation:
We have been given that one sample of n = 10 scores has a mean of M = 8.
So the sum of 10 scores for 1st sample will be: 
We are also told that second sample of n = 5 scores has a mean of M = 2.
So the sum of 5 scores for 2nd sample will be: 
When the both samples are combined, so total points will be:
and total scores will be
.



Therefore, the mean for the combined sample will be 6.
Answer
C. 49, 17, 4, 18
Step by step explanation
Here mean of all the data set is 88
To find the most spread of data, we need to find the range.
range of set A = The highest value - the lowest value = 36-6 = 30
Range of set B = 30-15 = 15
Range of set C = 49-4 = 45
Range of set D = 30-14= 16
Here the highest range is in Set C.
Therefore, answer is C. 49, 17, 4, 18