Answer:
It is C 5 x 3 + 1 = n
Step-by-step explanation:
You would multiply 5 x 3 because you have 3 balls that can fit in a can and there are 5 cans
Then you would add 1 because you had one extra ball that didn't fit in a can
The length of pendulum is 2.485 feet
<h3><u><em>
Solution:</em></u></h3>
Given that,
The formula T= 2pi sqrt(L/32) relates the time, T, in seconds for a pendulum with the length, L, in feet, to make one full swing back and forth
<u><em>Therefore, the given formula is:</em></u>

We have to find the length of pendulum that makes one full swing in 1.75 seconds
So the modify the given equation to find "L"

Substitute T = 1.75 seconds and 

Thus length of pendulum is 2.485 feet approximately
The answer to this is .15%
I got 4x if that isn’t right I will check again