Lesson 6 Tax Tip Markup Review

The store owner marked up the book by 40%, which means the selling price is 40% more than the cost price. To calculate the selling price, we can add 40% of $15 to the cost price. 40% of $15 is $6, so the selling price is $15 + $6 = $21.00 or $21.

The total cost of the sweatshirt can be calculated by adding the sales tax to the regular price. The sales tax is calculated by multiplying the regular price by the tax rate (5.5% or 0.055). Therefore, the sales tax amount is $42 * 0.055 = $2.31. Adding this tax amount to the regular price gives the total cost of $42 + $2.31 = $44.31.

The tax on Dave's baseball can be calculated by multiplying the price of the baseball ($15) by the tax rate (8%) which is $1.20. Therefore, the total amount Dave pays, including tax, is $15 + $1.20 = $16.20. Similarly, the tax on Mel's football is $20 * 8% = $1.60. Hence, the total amount Mel pays, including tax, is $20 + $1.60 = $21.60. The difference between the amounts Dave and Mel pay, including tax, is $21.60 - $16.20 = $5.40. Therefore, the correct answer is $5.40.

To calculate the total bill with a 15% tip, we need to find 15% of $35. To do this, we multiply $35 by 0.15, which gives us $5.25. Adding this tip amount to the original bill of $35, we get a total bill of $40.25.

The store pays $10 for the bracelet and applies a 115% markup, which means they increase the price by 115% of $10. This is calculated as $10 * 115% = $11.50.

Then, the customer will pay a 5.5% tax on the final price. This is calculated as $11.50 * 5.5% = $0.63.

To find the total cost, we add the final price and the tax: $11.50 + $0.63 = $12.13.

Rounding this to the nearest cent, the total cost of the bracelet will be $12.13, which is not the same as the given answer of $22.68. Therefore, the explanation for the given answer is not available.

The cost of the haircut is $20. The sales tax is 4.75%, which means an additional 4.75% of $20 will be added to the cost. This amounts to $0.95. Adding the sales tax to the cost of the haircut gives us $20 + $0.95 = $20.95. Additionally, a 15% tip needs to be added to the total cost. 15% of $20.95 is $3.14. Adding the tip to the total cost gives us $20.95 + $3.14 = $24.09. Since $25 is more than $24.09, it is sufficient to cover the haircut with tax and a 15% tip.

Ms. Taylor bought a water tube for $87 and 9% tax was added to the price. The total cost of the water tube including tax is $87 + ($87 * 9/100) = $87 + $7.83 = $94.83. She gave the cashier five $20 bills, which is a total of $100. Therefore, the change she should have received is $100 - $94.83 = $5.17.

To calculate the total cost of the sunglasses, Doreen can divide $68 by 0.07 to find the amount of sales tax, and then add this amount to the original price. Alternatively, she can multiply $68 by 1.07 to directly calculate the total cost with sales tax included. The equation "Solve for x: x = 107, 68/100" is not relevant to calculating the total cost of the sunglasses.