Question

Item 14 You buy a bicycle helmet for $22.26, which includes 6% sales tax. The helmet is discounted 30% off the selling price. What is the original price?

Answer 1

If you paid $22.26 after the discount and tax then 30% is 0.30 and 30% OFF is 1-0.30=0.70

Tax is 6% or 0.06 and along with the initial is 1+0.06=1.06 so P is original price in P×0.70×1.06=22.26

P×0.742=22.26

P=$30 was the original price

Hope this helped!