Franklin's family travelled 2/7 of the distance to his grandfather’s house on Saturday. They travelled 2/5 of the remaining distance on Sunday. What fraction of the total distance to his grandfather’s house was travelled on Sunday?

£56

step-by-step explanation:

probability for j is 1/4

while

a is 1/6

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.