Answer:
the length of all sides added together
Answer:
7.1 yard per min
Step-by-step explanation:
Answer: whats your question?
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
Garden: 
One Bag: 
Requires
Determine the number of bags to cover the whole garden
This is calculated as thus;

Expand the numerator



Express 81 as 9²

Evaluate as difference of two squares


Hence, the number of bags is 