Units 1 and 2 Review

Front

What is sales tax?

Back

Sales tax is a percentage of the price of a good or service that is added to the total cost, collected by the seller and paid to the government.

Front

How do you calculate sales tax?

Back

To calculate sales tax, multiply the price of the item by the sales tax rate (as a decimal). For example, for a $100 item with an 8% tax rate: $100 x 0.08 = $8.

Front

What is the formula to find the total cost including sales tax?

Back

Total Cost = Price + (Price x Sales Tax Rate).

Front

If a recipe uses 4 cups of oil for 16 pans of brownies, how much oil is needed for 1 pan?

Back

1/4 cup of oil is needed for 1 pan of brownies.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is often expressed as a quantity per 1 unit of another quantity.

Front

How do you convert gallons to liters?

Back

To convert gallons to liters, multiply the number of gallons by 3.8 (since 1 gallon is approximately 3.8 liters).

Front

What is the relationship between cups and pints?

Back

1 pint is equal to 2 cups.

Front

How do you find the percentage decrease in price?

Back

Percentage Decrease = (Original Price - New Price) / Original Price x 100%.

Front

If a jacket's price decreased from $50 to $35, what is the percentage decrease?

Back

The percentage decrease is 30%.

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.