Fall Semester Math Final Exam

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What is sales tax?

Back

Sales tax is a percentage of the sale price that is added to the total cost of a purchase. It is collected by the seller and paid to the government.

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How do you calculate the total bill including sales tax?

Back

To calculate the total bill, multiply the subtotal by the sales tax rate (as a decimal) and then add that amount to the subtotal.

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What is a commission?

Back

A commission is a fee paid to an employee based on the sales they make, usually expressed as a percentage of the sales amount.

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How do you calculate earnings from sales with a commission?

Back

To calculate earnings, add the base salary to the commission earned from sales. Commission is calculated by multiplying the sales amount by the commission rate.

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What is 10% of a number?

Back

10% of a number is found by multiplying the number by 0.10.

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How do you calculate a discount on an item?

Back

To calculate a discount, multiply the original price by the discount rate (as a decimal) and subtract that amount from the original price.

Front

What is the formula to find the new price after a discount?

Back

New Price = Original Price - (Original Price x Discount Rate).

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How do you compare two percentages?

Back

To compare two percentages, calculate the actual values they represent and then compare those values.

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What is the difference between 25% of 200 and 20% of 250?

Back

25% of 200 is 50, and 20% of 250 is also 50. They are the same.

Front

What is a subtotal?

Back

A subtotal is the total amount before any taxes, discounts, or additional fees are applied.