Tyler says he invented a number puzzle. He asks Clare to pick a number, and then asks her to do the following:

Triple the number

Subtract 7

Double the result

Subtract 22

Divide by 6

Clare says her final answer is -3. Tyler says her original number she thought must have been 3.

How did Tyler know that? Explain or show your reasoning.

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school

What is the best estimate of the length of a football