Answer: 6173/500 HOPE IT HELPED!
Answer:
if your looking for which is more cost effective it is the 0.80 per pound as 5 pounds of it would add up to $4.00
To find the interior angle of any regular polygon you can use the formula

where n is the number of sides
So,

The measure of an interior angle in a regular octagon is 135
He would make $1239.75
divide 4 in 2,204
multiply by 2.25