She knits 18 squares on Monday.
Then she knits 7 more squares each day:
Tuesday: +7, Wednesday: +7, Thursday: +7 and Friday: +7
18 + 7 * 4 = 18 + 28 = 46
Answer: She has 46 squares on Friday.
<u>Answer and Step-by-Step explaination:</u>
Area =Length time Width
Area= 21*21
Area=441
I’m a failure if you can just say “yes you are” in the comments
For

and

to be inversely proportional, there must be some constant

such that

Given that

when

, it follows that

Then when

, we have