7.EE.A.2

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

How do you write an expression for the cost of a pizza with t toppings if the base price is $8.25 and each topping costs $0.75?

Back

The expression is 8.25 + 0.75t.

Front

What does it mean to decrease a quantity by a percentage?

Back

To decrease a quantity by a percentage means to reduce it by that percentage of its original value.

Front

How do you express a population decrease of 3% from an initial population M?

Back

The expression is M - 0.03M or 0.97M.

Front

What is the formula to calculate the total cost of buying j jerseys at $15 each and p pants at $25 each?

Back

The expression is 15j + 25p.

Front

What is a discount in terms of pricing?

Back

A discount is a reduction in the original price of an item, often expressed as a percentage.

Front

If a shirt costs s dollars and is sold at a 7% discount, how do you express the final price?

Back

The final price is 0.93s.

Front

What is the total cost for n nights at a hotel that charges $80 per night plus a $20 fee?

Back

The total cost is 80n + 20.

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.

Front

What does the term 'constant' mean in mathematics?

Back

A constant is a fixed value that does not change.