C = 2(PI)r multiply 2 x 3.14 x (whatever the radius is!
It is helpful to estimate quotients when the number is very big.
The table models an exponential relationship, and the equation of the table is 
<h3>How to analyze the table of values?</h3>
The table of values is given as:
x 0 1 2 3 4
y 4 2 1 1/2 1/4
The above table shows an exponential model
An exponential model is represented as:

When x = 0 and y = 4, we have

Evaluate
a = 4
When x = 1 and y = 2, we have

Evaluate

Substitute 4 for a
4b = 2
Divide both sides by 4
b = 1/2
Substitute 4 for a and 1/2 for b in 

Hence, the equation of the table is 
Read more about exponential models at:
brainly.com/question/11464095
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Answer:
b = 79
Step-by-step explanation:
The y-intercept is the point at which x is 0. Looking at the data table, when x is 0, y is 79.
24cm3 because it says the volume is 24cm3 and the prism measurements are 4x2x4cm