Question

Wayne bought an engagement ring for Tracy.

Answer 1

I am pretty sure your answer is going to be 493.5, I hope this helps!!

Answer 2

It would be: 420 + (420 * 17.5%)
= 420 + (420 * 0.175)  [ 17.5% = 0.175 ]
= 420 + 73.5
= 493.5

In short, Your Answer would be £493.5

Hope this helps!