If the perimeter of the smaller polygon is 72m, what is the perimeter of the larger polygon?

perimeter ratio is 6\11
area ratio is 36\121
similarity ratio is 6\11

The depreciation per unit for a company

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?