He has three pieces of ropes with length of 140 cm,168 cm and 210 cm. he wishes to cut all three pieces of ropes into smaller pieces of equal length such that there is no left over
i ) what is the greatest possible length of each of the smaller pieces of ropes?

Which of the following situations represents a linear relationship? a. theresa increases the distance she runs by 0.1 miles every week. b. the volume of a box depends on the length of box. c. the amount of money in a bank account increases by 1 percent each year. d. the population of a town doubles every 5 years.

Find the solution of system of equation y= x-4 y=4x+2

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).