Answer: D 30%
Step-by-step explanation:amount change/amount start x 100%
(20-14)/20=.3
.3 x 100% = 30%
Parallelogram area = base * height
240 = base * 20
base = 240 / 20
base = 12 cm
I is a graph equation
It is asking you which of those options will make a line that would cross the two points that are listed in the question
So I am pretty sure the answer is option B
If this answer is not understandable please message me or leave a comment
Answer: b. 30%
Step-by-step explanation:
- A measure of relative variability is known as coefficient of variation. It is the ratio of the standard deviation to the mean.
i.e. 
Given: mean = 
Variance = 

Now, 
in percent , 
Hence, correct option is b. 30%.