Answer:
Let's just call the number x. 3/8ths of x and 1 more equals 11.
As an equation, this basically means

Answer:
the slope is 3, because if u ser in the table where's says "x" its going Up by 3
Answer:
There is sufficient evidence to support the claim that the standard deviation is less than 14.7.
Step-by-step explanation:
From the question we are told that that the null hypothesis is

Now given from the question that this null hypothesis was rejected, it mean, in non technical term that there is sufficient evidence to support the claim that the standard deviation is less than 14.7.
The numbers are 15,18
They add to 33 and a difference of 3