Tech Math Semester Exam

Front

Back

c=30

Front

Calculate the final price of a T.V. that costs $990 with a 9% sales tax.

Back

Final Price = $1,079.10

Front

What is the inverse (opposite) of addition?

Back

Subtraction

Front

The 'principal' can be described as ______.

Back

The starting amount of money

Front

Back

a=270

Front

What is the formula for calculating sales tax?

Back

Sales Tax = Price × Tax Rate

Front

Define the term 'interest' in finance.

Back

Interest is the cost of borrowing money, usually expressed as a percentage of the principal.

Front

What is the formula for calculating the final amount with interest?

Back

Final Amount = Principal + Interest

Front

If you have a 20% discount on an item that costs $50, what is the discount amount?

Back

Discount Amount = $10

Front

What is the formula for calculating the area of a rectangle?

Back

Area = Length × Width