Question

Sue bought a new dress while on holiday in the USA. The sales tax was 8%. If she was paid $6.40 tax, and if she was charged 15% duty on the original purchase (before tax), how much did she pay in all?
Ms. Sue
0.08x - 6.40

x = 80

80 + 6.40 + (80 * 0.15) = $_________
asdf
92
not smart kid
tysm