Two websites sell the same type of headphones.
Website A Website B Cost of headphones £49.95 £47.68 Cost of postage £4.39 £6.95 Including the cost of postage which website is cheaper and by how much?
The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c