2/15 = 40/x
It will take 300 minutes or 5 hours
Use Pythagorean's Theorem to find the length of x.

so

and

. We can simplify that radicand down into a perfect square times a prime number, and that is

. 4 is a perfect square that can be pulled out as a 2, so the length of x is

, the choice on the top right.
Answer:
C. 42
Step-by-step explanation:
Answer:
..
Step-by-step explanation: