Following order of operations, multiplication -> division.
6x2 = 12
12 / 3 = 4
Formula is C = 2pi * radius.
C = 2π(4)
C = 25.1
There's a calculator on the home page of the website, but 735/14 = 52.5.
Simply enter it in like "2/5" or "(2/5)".
Parallel lines are lines that have the same slope, so yes.
