Step-by-step explanation: We know that each plantar has a base of 5.5 by 1 2/3. So if we multiply 5.5 by 1 2/3 we can get 9.166666667. However, there is 9 planters because 3 times 3 is 9. So if we multiply 9.166666667 by 9 we will get 82.5 inches
The answer is 36 & 18 because i took the mean and figured out the what the difference had to be for it to equal 18 and used the same number to get to 54