Li Ting has three pieces of rope with lengths of 140 cm, 168 cm and 210 cm. She wishes to cut the three pieces of rope equally into smaller pieces without any leftover rope.
What is the greatest possible length of each of the smaller pieces of rope?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller

Einstein office equipment has a rental plan for office machines. a fax machine that lists for $722.98 can be rented for 22% of the price annually. the state imposes a usage charge of 3.2%. if stephen hawking travel decides to rent the fax machine, what will its total monthly rental charge be?