Mush

7.some products total costs $54.64 exclusive tax.The tax is $0.79 which is 5% rate to the taxable items. The untaxed costs

可是明明写着54。64是exclusive tax的。这是未税的cost.在这个cost里面 有taxable and non taxable的item。所以0。79/5%得出的是在54。64里面taxable的item.所以要用54。64-0。79/5%=38。84啊。