PLSSS HELP I WILLL GIVE YOU BRAINLIEST PLSSS HELP I WILLL GIVE YOU BRAINLIEST

PLSSS HELP I WILLL GIVE YOU BRAINLIEST

Answer this question only if you know the answer! 30 points and

Adriveway is 40 yards long about how many meters long is it

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).