24= 16; the fourth root of 16 is 2.

If 6 people can run 3 machines, then 18 people can run 3 times the number of machines 6 people can run because 18 = 3 × 6 (divide 18 by 6). 3 × 3 machines = 9 machines. 18 people can run 9 machines.

To determine the amount of force exerted by the cats, first multiply the length of the resistance arm (as it applies to the cat) by the weight of each cat and add the products together. The 10-pound cat is Add `em up: 50 + 15 = 65. This number is equal to the length of the resistance arm times effort (force)

24% = 24/100. This fraction can be further reduced to 6/25.