Find the greatest common factor of these two expressions 18y^6w^2 and 27y^5 w^4 u^7

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet

Write the equation of the circle centered at (10,-2) with radius 2.

Which of the following is an irrational number