Answer:

Step-by-step explanation:
The original board is 40 1/8 inch and it is cut in 3 pieces of equal length:
New boards = 
And now he cuts again 3 3/4 inches off of each one of the new boards (substracts)

Answer:
hope this helps
check the picture attached for steps
Answer:
option A
The base is e^-1
Step-by-step explanation:
Given in the question a function, f(x) = (1/e)
This function can also be write as.
f(x) =
by using Negative Exponent Rule

This says that negative exponents in the numerator get moved to the denominator and become positive exponents.
The distance is 12.041594578792295. Round to 12.0