Multiply 2/3 by 84 which is 56.
Answer:
<h2>The total value of all the letters in the alphabet is 676.</h2>
Step-by-step explanation:
The problem is about an arithmetic sequence where the difference is 2, the first term is 1 and we know that the alphabet has 26 letters.
To find the total sum of all values, we have to use the following formula

Where
,
and
. Replacing values, we have

Therefore, the total value of all the letters in the alphabet is 676.
Answer: 1st option
Step-by-step explanation:
I've attached the solution
Answer:
The height of the cone is 
Step-by-step explanation:
we know that
The volume of a cone is equal to

In this problem we have
----> the radius is half the diameter

assume 
substitute the values and solve for h

