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 
You go to “answer” at the bottom and find lots of questions to answer
Answer:
25 more inches
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Plug the numbers into the distance formula:


Then solve:
You get 10
Answer:
n<-9
p (put the symbol already there here) -7
Step-by-step explanation:
Hope this helps!!