divide the total cost by the number of hinges:
Mark's hardware: $28 / 8 = $3.50 per hinge
Steve's Supply: $39 / 11 = $3.45 per hinge.
$3.45 is less than $3.50, so the answer would be C.
So the equation for the area of a circle is

First to find the radius, you would need to divide the diameter, 26, by half, which in this case its 13.
Replace the r variable with 13 and solve:


3000 s........h hours
3000/h.........1 hour
3000/60h.......1 minute
3000*m/60h....m minutes
I think it's commutative property of addition (you can change order of addition but in the end it would be the same)