80 is a good one to start with.
After that, you can move on to 83, 481, 1687, and 102,974,589 .
The answer to your question is 3:23
Answer:
Volume of a cube= 1/8 cubic meter
We know that volume of a cube= side x side x side
= 
From here, we get side of cube=
meter
Hence, the side of a cube =
meter
We have to find a fraction, when it is multiplied by itself
x
= 
Here we get our answer 
So this is going to be a linear equation, you can tell by seeing the growth being the same between days 15 and 20 & 33 and 38. We will be using the

format, where m = slope and b = y-intercept.
The equation to solve for the slope is

. You can use any two ordered pairs on this list. I'll be using 15 and 20.

45 is the slope.
To solve for the y-intercept, plug in 45 in the m variable and any ordered pair into the x and y variable spot. For this, I'll be using (15, 815)

Now putting the equation together (

) we can plug in 26 into the x variable and solve.
In short, the answer is B. 1,310 feet.