Question

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Answer 1

i got 10π ft2/ft

Answer 2

ft2/ft ?

Answer 3

i think so

Answer 4

ft^2/fy

Answer 5

ft^2/ft **

Answer 6

yes

Answer 7

So, they are asking for A'(5) (that's my interpretation of thw question).

A(r)=\(\pi\)r\(^2\)
A'(r)=2\(\pi\)r
A'(5)=2\(\pi\)•5=10\(\pi\)

then yes, you are correct

Answer 8

what happened to the puddle though :(

Answer 9

Great job, @chris215