Final answer:
To calculate the total cost of a bike in Beach's Bikes, take 15% off the original price and add the sales tax of 8% to the discounted price.
Step-by-step explanation:
To calculate the total cost of a bike in Beach's Bikes, Michael uses the following process:
Take 15% off the original price of the bike.
Add the sales tax of 8% to the discounted price.
To find the original price of the bike including the 8% sales tax, you can use the formula:
Original Price = (Total Cost / (1 + Rate of Sales Tax))
Where, Total Cost is the price after taking 15% off and adding the sales tax.