Pls asap : ( i have no idea how to do sigma notation

The correct answer is C

Sigma Notation is when we take all of the whole numbers between the starting point (which can be found as the number under the sigma sign) and the end number (which can be found above the sigma sign). Therefore, we will add together all of the values of 3k + 2 for when k is equal to all of the numbers between 2 and 7. So, let's evaluate each one first.

When k = 2

3(2) + 2 = 8

When k = 3

3(3) + 2 = 11

When k = 4

3(4) + 2 = 14

When k = 5

3(5) + 2 = 17

When k = 6

3(6) + 2 = 20

When k = 7

3(7) + 2 = 23

So we know we have the following.

8 + 11 + 14 + 17 + 20 + 23

Now for the number after the comma, we are just looking for the answer of them all added together. So the final answer should be

8 + 11 + 14 + 17 + 20 + 23, 93

Alright mate, lets do some math!
We are trying to find the height of each hay bale right? So we need to divide the volume by the length and the width... so:
H = (10 2/3ft^3) diveded by (1 1/3ft x 4ft)
H = 2 ft
There are 8 bales of hay mate, so we have to multipy that by the H... so 2x8= 16ft.
Hope this helped!